Summa Th. II-II EN Qu.186 a.2

Whether every religious is bound to keep all the counsels?

Objection: 1. It would seem that every religious is bound to keep all the counsels. For whoever professes a certain state of life is bound to observe whatever belongs to that state. Now each religious professes the state of perfection. Therefore every religious is bound to keep all the counsels that pertain to the state of perfection.
2. Further, Gregory says (Hom. xx in Ezech.) that "he who renounces this world, and does all the good he can, is like one who has gone out of Egypt and offers sacrifice in the wilderness." Now it belongs specially to religious to renounce the world. Therefore it belongs to them also to do all the good they can. and so it would seem that each of them is bound to fulfil all the counsels.
3. Further, if it is not requisite for the state of perfection to fulfil all the counsels, it would seem enough to fulfil some of them. But this is false, since some who lead a secular life fulfil some of the counsels, for instance those who observe continence. Therefore it would seem that every religious who is in the state of perfection is bound to fulfil whatever pertains to perfection: and such are the counsels.

On the contrary one is not bound, unless one bind oneself, to do works of supererogation. But every religious does not bind himself to keep all the counsels, but to certain definite ones, some to some, others to others. Therefore all are not bound to keep all of them.
I answer that A thing pertains to perfection in three ways. First, essentially, and thus, as stated above (Question [184], Article [3]) the perfect observance of the precepts of charity belongs to perfection. Secondly, a thing belongs to perfection consequently: such are those things that result from the perfection of charity, for instance to bless them that curse you (Lc 6,27), and to keep counsels of a like kind, which though they be binding as regards the preparedness of the mind, so that one has to fulfil them when necessity requires; yet are sometimes fulfilled, without there being any necessity, through superabundance of charity. Thirdly, a thing belongs to perfection instrumentally and dispositively, as poverty, continence, abstinence, and the like.Now it has been stated (Article [1]) that the perfection of charity is the end of the religious state. And the religious state is a school or exercise for the attainment of perfection, which men strive to reach by various practices, just as a physician may use various remedies in order to heal. But it is evident that for him who works for an end it is not necessary that he should already have attained the end, but it is requisite that he should by some means tend thereto. Hence he who enters the religious state is not bound to have perfect charity, but he is bound to tend to this, and use his endeavors to have perfect charity.For the same reason he is not bound to fulfil those things that result from the perfection of charity, although he is bound to intend to fulfil them: against which intention he acts if he contemns them, wherefore he sins not by omitting them but by contempt of them.In like manner he is not bound to observe all the practices whereby perfection may be attained, but only those which are definitely prescribed to him by the rule which he has professed.

Reply to Objection: 1. He who enters religion does not make profession to be perfect, but he professes to endeavor to attain perfection; even as he who enters the schools does not profess to have knowledge, but to study in order to acquire knowledge. Wherefore as Augustine says (De Civ. Dei viii, 2), Pythagoras was unwilling to profess to be a wise man, but acknowledged himself, "a lover of wisdom." Hence a religious does not violate his profession if he be not perfect, but only if he despises to tend to perfection.
2. Just as, though all are bound to love God with their whole heart, yet there is a certain wholeness of perfection which cannot be omitted without sin, and another wholeness which can be omitted without sin (Question [184], Article [2], ad 3), provided there be no contempt, as stated above (ad 1), so too, all, both religious and seculars, are bound, in a certain measure, to do whatever good they can, for to all without exception it is said (Qo 9,10): "Whatsoever thy hand is able to do, do it earnestly." Yet there is a way of fulfilling this precept, so as to avoid sin, namely if one do what one can as required by the conditions of one's state of life: provided there be no contempt of doing better things, which contempt sets the mind against spiritual progress.
3. There are some counsels such that if they be omitted, man's whole life would be taken up with secular business; for instance if he have property of his own, or enter the married state, or do something of the kind that regards the essential vows of religion themselves; wherefore religious are bound to keep all such like counsels. Other counsels there are, however, about certain particular better actions, which can be omitted without one's life being taken up with secular actions; wherefore there is no need for religious to be bound to fulfil all of them.

Whether poverty is required for religious perfection?

Objection: 1. It would seem that poverty is not required for religious perfection. For that which it is unlawful to do does not apparently belong to the state of perfection. But it would seem to be unlawful for a man to give up all he possesses; since the Apostle (2Co 8,12) lays down the way in which the faithful are to give alms saying: "If the will be forward, it is accepted according to that which a man hath," i.e. "you should keep back what you need," and afterwards he adds (2Co 8,13): "For I mean not that others should be eased, and you burthened," i.e. "with poverty," according to a gloss. Moreover a gloss on 1Tm 6,8, "Having food, and wherewith to be covered," says: "Though we brought nothing, and will carry nothing away, we must not give up these temporal things altogether." Therefore it seems that voluntary poverty is not requisite for religious perfection.
2. Further, whosoever exposes himself to danger sins. But he who renounces all he has and embraces voluntary poverty exposes himself to danger---not only spiritual, according to Pr 30,9, "Lest perhaps . . . being compelled by poverty, I should steal and forswear the name of my God," and Si 27,1, "Through poverty many have sinned"---but also corporal, for it is written (Qo 7,13): "As wisdom is a defense, so money is a defense," and the Philosopher says (Ethic. iv, 1) that "the waste of property appears to be a sort of ruining of one's self, since thereby man lives." Therefore it would seem that voluntary poverty is not requisite for the perfection of religious life.
3. Further, "Virtue observes the mean," as stated in Ethic. ii, 6. But he who renounces all by voluntary poverty seems to go to the extreme rather than to observe the mean. Therefore he does not act virtuously: and so this does not pertain to the perfection of life.
4. Further, the ultimate perfection of man consists in happiness. Now riches conduce to happiness; for it is written (Si 31,8): "Blessed is the rich man that is found without blemish," and the Philosopher says (Ethic. i, 8) that "riches contribute instrumentally to happiness." Therefore voluntary poverty is not requisite for religious perfection.
5. Further, the episcopal state is more perfect than the religious state. But bishops may have property, as stated above (Question [185], Article [6]). Therefore religious may also.
6. Further, almsgiving is a work most acceptable to God, and as Chrysostom says (Hom. ix in Ep ad Hebr.) "is a most effective remedy in repentance." Now poverty excludes almsgiving. Therefore it would seem that poverty does not pertain to religious perfection.

On the contrary Gregory says (Moral. viii, 26): "There are some of the righteous who bracing themselves up to lay hold of the very height of perfection, while they aim at higher objects within, abandon all things without." Now, as stated above, (Articles [1],2), it belongs properly to religious to brace themselves up in order to lay hold of the very height of perfection. Therefore it belongs to them to abandon all outward things by voluntary poverty.
I answer that As stated above (Article [2]), the religious state is an exercise and a school for attaining to the perfection of charity. For this it is necessary that a man wholly withdraw his affections from worldly things; since Augustine says (Confess. x, 29), speaking to God: "Too little doth he love Thee, who loves anything with Thee, which he loveth not for Thee." Wherefore he says (Questions. lxxxiii, qu. 36) that "greater charity means less cupidity, perfect charity means no cupidity." Now the possession of worldly things draws a man's mind to the love of them: hence Augustine says (Ep. xxxi ad Paulin. et Theras.) that "we are more firmly attached to earthly things when we have them than when we desire them: since why did that young man go away sad, save because he had great wealth? For it is one thing not to wish to lay hold of what one has not, and another to renounce what one already has; the former are rejected as foreign to us, the latter are cut off as a limb." And Chrysostom says (Hom. lxiii in Matth.) that "the possession of wealth kindles a greater flame and the desire for it becomes stronger."Hence it is that in the attainment of the perfection of charity the first foundation is voluntary poverty, whereby a man lives without property of his own, according to the saying of our Lord (Mt 19,21), "If thou wilt be perfect, go, sell all [Vulg.: 'what'] thou hast, and give to the poor . . . and come, follow Me."

Reply to Objection: 1. As the gloss adds, "when the Apostle said this (namely "not that you should be burthened," i.e. with poverty)," he did not mean that "it were better not to give: but he feared for the weak, whom he admonished so to give as not to suffer privation." Hence in like manner the other gloss means not that it is unlawful to renounce all one's temporal goods, but that this is not required of necessity. Wherefore Ambrose says (De Offic. i, 30): "Our Lord does not wish," namely does not command us "to pour out our wealth all at once, but to dispense it; or perhaps to do as did Eliseus who slew his oxen, and fed the poor with that which was his own so that no household care might hold him back."
2. He who renounces all his possessions for Christ's sake exposes himself to no danger, neither spiritual nor corporal. For spiritual danger ensues from poverty when the latter is not voluntary; because those who are unwillingly poor, through the desire of money-getting, fall into many sins, according to 1Tm 6,9, "They that will become rich, fall into temptation and into the snare of the devil." This attachment is put away by those who embrace voluntary poverty, but it gathers strength in those who have wealth, as stated above. Again bodily danger does not threaten those who, intent on following Christ, renounce all their possessions and entrust themselves to divine providence. Hence Augustine says (De Serm. Dom. in Monte ii, 17): "Those who seek first the kingdom of God and His justice are not weighed down by anxiety lest they lack what is necessary."
3. According to the Philosopher (Ethic. ii, 6), the mean of virtue is taken according to right reason, not according to the quantity of a thing. Consequently whatever may be done in accordance with right reason is not rendered sinful by the greatness of the quantity, but all the more virtuous. It would, however, be against right reason to throw away all one's possessions through intemperance, or without any useful purpose; whereas it is in accordance with right reason to renounce wealth in order to devote oneself to the contemplation of wisdom. Even certain philosophers are said to have done this; for Jerome says (Ep. xlviii ad Paulin.): "The famous Theban, Crates, once a very wealthy man, when he was going to Athens to study philosophy, cast away a large amount of gold; for he considered that he could not possess both gold and virtue at the same time." Much more therefore is it according to right reason for a man to renounce all he has, in order perfectly to follow Christ. Wherefore Jerome says (Ep. cxxv ad Rust. Monach.): "Poor thyself, follow Christ poor."
4. Happiness or felicity is twofold. One is perfect, to which we look forward in the life to come; the other is imperfect, in respect of which some are said to be happy in this life. The happiness of this life is twofold, one is according to the active life, the other according to the contemplative life, as the Philosopher asserts (Ethic. x, 7,8). Now wealth conduces instrumentally to the happiness of the active life which consists in external actions, because as the Philosopher says (Ethic. i, 8) "we do many things by friends, by riches, by political influence, as it were by instruments." On the other hand, it does not conduce to the happiness of the contemplative life, rather is it an obstacle thereto, inasmuch as the anxiety it involves disturbs the quiet of the soul, which is most necessary to one who contemplates. Hence it is that the Philosopher asserts (Ethic. x, 8) that "for actions many things are needed, but the contemplative man needs no such things," namely external goods, "for his operation; in fact they are obstacles to his contemplation."Man is directed to future happiness by charity; and since voluntary poverty is an efficient exercise for the attaining of perfect charity, it follows that it is of great avail in acquiring the happiness of heaven. Wherefore our Lord said (Mt 19,21): "Go, sell all [Vulg.: 'what'] thou hast, and give to the poor, and thou shalt have treasure in heaven." Now riches once they are possessed are in themselves of a nature to hinder the perfection of charity, especially by enticing and distracting the mind. Hence it is written (Mt 13,22) that "the care of this world and the deceitfulness of riches choketh up the word" of God, for as Gregory says (Hom. xv in ) by "preventing the good desire from entering into the heart, they destroy life at its very outset." Consequently it is difficult to safeguard charity amidst riches: wherefore our Lord said (Mt 19,23) that "a rich man shall hardly enter into the kingdom of heaven," which we must understand as referring to one who actually has wealth, since He says that this is impossible for him who places his affection in riches, according to the explanation of Chrysostom (Hom. lxiii in Matth.), for He adds (Mt 19,24): "It is easier for a camel to pass through the eye of a needle, than for a rich man to enter into the kingdom of heaven." Hence it is not said simply that the "rich man" is blessed, but "the rich man that is found without blemish, and that hath not gone after gold," and this because he has done a difficult thing, wherefore the text continues (Mt 19,9): "Who is he? and we will praise him; for he hath done wonderful things in his life," namely by not loving riches though placed in the midst of them.
5. The episcopal state is not directed to the attainment of perfection, but rather to the effect that, in virtue of the perfection which he already has, a man may govern others, by administering not only spiritual but also temporal things. This belongs to the active life, wherein many things occur that may be done by means of wealth as an instrument, as stated (ad 4). Wherefore it is not required of bishops, who make profession of governing Christ's flock, that they have nothing of their own, whereas it is required of religious who make profession of learning to obtain perfection.
6. The renouncement of one's own wealth is compared to almsgiving as the universal to the particular, and as the holocaust to the sacrifice. Hence Gregory says (Hom. xx in Ezech.) that those who assist "the needy with the things they possess, by their good deeds offer sacrifice, since they offer up something to God and keep back something for themselves; whereas those who keep nothing for themselves offer a holocaust which is greater than a sacrifice." Wherefore Jerome also says (Contra Vigilant.): "When you declare that those do better who retain the use of their possessions, and dole out the fruits of their possessions to the poor, it is not I but the Lord Who answers you; If thou wilt be perfect," etc., and afterwards he goes on to say: "This man whom you praise belongs to the second and third degree, and we too commend him: provided we acknowledge the first as to be preferred to the second and third." For this reason in order to exclude the error of Vigilantius it is said (De Eccl. Dogm. xxxviii): "It is a good thing to give away one's goods by dispensing them to the poor: it is better to give them away once for all with the intention of following the Lord, and, free of solicitude, to be poor with Christ."

Whether perpetual continence is required for religious perfection?

Objection: 1. It would seem that perpetual continence is not required for religious perfection. For all perfection of the Christian life began with Christ's apostles. Now the apostles do not appear to have observed continence, as evidenced by Peter, of whose mother-in-law we read Mt 8,14. Therefore it would seem that perpetual continence is not requisite for religious perfection.
2. Further, the first example of perfection is shown to us in the person of Abraham, to whom the Lord said (Gn 17,1): "Walk before Me, and be perfect." Now the copy should not surpass the example. Therefore perpetual continence is not requisite for religious perfection.
3. Further, that which is required for religious perfection is to be found in every religious order. Now there are some religious who lead a married life. Therefore religious perfection does not require perpetual continence.

On the contrary The Apostle says (2Co 7,1): "Let us cleanse ourselves from all defilement of the flesh and of the spirit, perfecting sanctification in the fear of God." Now cleanness of flesh and spirit is safeguarded by continence, for it is said (1Co 7,34): "The unmarried woman and the virgin thinketh on the things of the Lord that she may be holy both in spirit and in body [Vulg.: 'both in body and in spirit']." Therefore religious perfection requires continence.
I answer that The religious state requires the removal of whatever hinders man from devoting himself entirely to God's service. Now the use of sexual union hinders the mind from giving itself wholly to the service of God, and this for two reasons. First, on account of its vehement delectation, which by frequent repetition increases concupiscence, as also the Philosopher observes (Ethic. iii, 12): and hence it is that the use of venery withdraws the mind from that perfect intentness on tending to God. Augustine expresses this when he says (Solil. i, 10): "I consider that nothing so casts down the manly mind from its height as the fondling of women, and those bodily contacts which belong to the married state." Secondly, because it involves man in solicitude for the control of his wife, his children, and his temporalities which serve for their upkeep. Hence the Apostle says (1Co 7,32-33): "He that is without a wife is solicitous for the things that belong to the Lord, how he may please God: but he that is with a wife is solicitous for the things of the world, how he may please his wife."Therefore perpetual continence, as well as voluntary poverty, is requisite for religious perfection. Wherefore just as Vigilantius was condemned for equaling riches to poverty, so was Jovinian condemned for equaling marriage to virginity.

Reply to Objection: 1. The perfection not only of poverty but also of continence was introduced by Christ Who said (Mt 19,12): "There are eunuchs who have made themselves eunuchs, for the kingdom of heaven," and then added: "He that can take, let him take it." And lest anyone should be deprived of the hope of attaining perfection, he admitted to the state of perfection those even who were married. Now the husbands could not without committing an injustice forsake their wives, whereas men could without injustice renounce riches. Wherefore Peter whom He found married, He severed not from his wife, while "He withheld from marriage John who wished to marry" [*Prolog. in Joan. among the supposititious works of St. Jerome].
2. As Augustine says (De Bono Conjug. xxii), "the chastity of celibacy is better than the chastity of marriage, one of which Abraham had in use, both of them in habit. For he lived chastely, and he might have been chaste without marrying, but it was not requisite then." Nevertheless if the patriarchs of old had perfection of mind together with wealth and marriage, which is a mark of the greatness of their virtue, this is no reason why any weaker person should presume to have such great virtue that he can attain to perfection though rich and married; as neither does a man unarmed presume to attack his enemy, because Samson slew many foes with the jaw-bone of an ass. For those fathers, had it been seasonable to observe continence and poverty, would have been most careful to observe them.
3. Such ways of living as admit of the use of marriage are not the religious life simply and absolutely speaking, but in a restricted sense, in so far as they have a certain share in those things that belong to the religious state.

Whether obedience belongs to religious perfection?

Objection: 1. It would seem that obedience does not belong to religious perfection. For those things seemingly belong to religious perfection, which are works of supererogation and are not binding upon all. But all are bound to obey their superiors, according to the saying of the Apostle (He 13,17), "Obey your prelates, and be subject to them." Therefore it would seem that obedience does not belong to religious perfection.
2. Further, obedience would seem to belong properly to those who have to be guided by the sense of others, and such persons are lacking in discernment. Now the Apostle says (He 5,14) that "strong meat is for the perfect, for them who by custom have their senses exercised to the discerning of good and evil." Therefore it would seem that obedience does not belong to the state of the perfect.
3. Further, if obedience were requisite for religious perfection, it would follow that it is befitting to all religious. But it is not becoming to all; since some religious lead a solitary life, and have no superior whom they obey. Again religious superiors apparently are not bound to obedience. Therefore obedience would seem not to pertain to religious perfection.
4. Further, if the vow of obedience were requisite for religion, it would follow that religious are bound to obey their superiors in all things, just as they are bound to abstain from all venery by their vow of continence. But they are not bound to obey them in all things, as stated above (Question [104], Article [5]), when we were treating of the virtue of obedience. Therefore the vow of obedience is not requisite for religion.
5. Further, those services are most acceptable to God which are done freely and not of necessity, according to 2Co 9,7, "Not with sadness or of necessity." Now that which is done out of obedience is done of necessity of precept. Therefore those good works are more deserving of praise which are done of one's own accord. Therefore the vow of obedience is unbecoming to religion whereby men seek to attain to that which is better.

On the contrary Religious perfection consists chiefly in the imitation of Christ, according to Mt 19,21, "If thou wilt be perfect, go sell all [Vulg.: 'what'] thou hast, and give to the poor, and follow Me." Now in Christ obedience is commended above all according to Ph 2,8, "He became [Vulg.: 'becoming'] obedient unto death." Therefore seemingly obedience belongs to religious perfection.
I answer that As stated above (Articles [2],3) the religious state is a school and exercise for tending to perfection. Now those who are being instructed or exercised in order to attain a certain end must needs follow the direction of someone under whose control they are instructed or exercised so as to attain that end as disciples under a master. Hence religious need to be placed under the instruction and command of someone as regards things pertaining to the religious life; wherefore it is said (VII, qu. i, can. Hoc nequaquam): "The monastic life denotes subjection and discipleship." Now one man is subjected to another's command and instruction by obedience: and consequently obedience is requisite for religious perfection.

Reply to Objection: 1. To obey one's superiors in matters that are essential to virtue is not a work of supererogation, but is common to all: whereas to obey in matters pertaining to the practice of perfection belongs properly to religious. This latter obedience is compared to the former as the universal to the particular. For those who live in the world, keep something for themselves, and offer something to God; and in the latter respect they are under obedience to their superiors: whereas those who live in religion give themselves wholly and their possessions to God, as stated above (Articles [1],3). Hence their obedience is universal.
2. As the Philosopher says (Ethic. ii, 1,2), by performing actions we contract certain habits, and when we have acquired the habit we are best able to perform the actions. Accordingly those who have not attained to perfection, acquire perfection by obeying, while those who have already acquired perfection are most ready to obey, not as though they need to be directed to the acquisition of perfection, but as maintaining themselves by this means in that which belongs to perfection.
3. The subjection of religious is chiefly in reference to bishops, who are compared to them as perfecters to perfected, as Dionysius states (Eccl. Hier. vi), where he also says that the "monastic order is subjected to the perfecting virtues of the bishops, and is taught by their godlike enlightenment." Hence neither hermits nor religious superiors are exempt from obedience to bishops; and if they be wholly or partly exempt from obedience to the bishop of the diocese, they are nevertheless bound to obey the Sovereign Pontiff, not only in matters affecting all in common, but also in those which pertain specially to religious discipline.
4. The vow of obedience taken by religious, extends to the disposition of a man's whole life, and in this way it has a certain universality, although it does not extend to all individual acts. For some of these do not belong to religion, through not being of those things that concern the love of God and of our neighbor, such as rubbing one's beard, lifting a stick from the ground and so forth, which do not come under a vow nor under obedience; and some are contrary to religion. Nor is there any comparison with continence whereby acts are excluded which are altogether contrary to religion.
5. The necessity of coercion makes an act involuntary and consequently deprives it of the character of praise or merit; whereas the necessity which is consequent upon obedience is a necessity not of coercion but of a free will, inasmuch as a man is willing to obey, although perhaps he would not be willing to do the thing commanded considered in itself. Wherefore since by the vow of obedience a man lays himself under the necessity of doing for God's sake certain things that are not pleasing in themselves, for this very reason that which he does is the more acceptable to God, though it be of less account, because man can give nothing greater to God, than by subjecting his will to another man's for God's sake. Hence in the Conferences of the Fathers (Coll. xviii, 7) it is stated that "the Sarabaitae are the worst class of monks, because through providing for their own needs without being subject to superiors, they are free to do as they will; and yet day and night they are more busily occupied in work than those who live in monasteries."

Whether it is requisite for religious perfection that poverty, continence, and obedience should come under a vow?

Objection: 1. It would seem that it is not requisite for religious perfection that the three aforesaid, namely poverty, continence, and obedience, should come under a vow. For the school of perfection is founded on the principles laid down by our Lord. Now our Lord in formulating perfection (Mt 19,21) said: "If thou wilt be perfect, go, sell all [Vulg.: 'what'] thou hast, and give to the poor," without any mention of a vow. Therefore it would seem that a vow is not necessary for the school of religion.
2. Further, a vow is a promise made to God, wherefore (Qo 5,3) the wise man after saying: "If thou hast vowed anything to God, defer not to pay it," adds at once, "for an unfaithful and foolish promise displeaseth Him." But when a thing is being actually given there is no need for a promise. Therefore it suffices for religious perfection that one keep poverty, continence, and obedience without. vowing them.
3. Further, Augustine says (Ad Pollent., de Adult. Conjug. i, 14): "The services we render are more pleasing when we might lawfully not render them, yet do so out of love." Now it is lawful not to render a service which we have not vowed, whereas it is unlawful if we have vowed to render it. Therefore seemingly it is more pleasing to God to keep poverty, continence, and obedience without a vow. Therefore a vow is not requisite for religious perfection.

On the contrary In the Old Law the Nazareans were consecrated by vow according to Nb 6,2, "When a man or woman shall make a vow to be sanctified and will consecrate themselves to the Lord," etc. Now these were a figure of those "who attain the summit of perfection," as a gloss [*Cf. Moral. ii] of Gregory states. Therefore a vow is requisite for religious perfection.
I answer that It belongs to religious to be in the state of perfection, as shown above (Question [174], Article [5]). Now the state of perfection requires an obligation to whatever belongs to perfection: and this obligation consists in binding oneself to God by means of a vow. But it is evident from what has been said (Articles [3],4,5) that poverty, continence, and obedience belong to the perfection of the Christian life. Consequently the religious state requires that one be bound to these three by vow. Hence Gregory says (Hom. xx in Ezech.): "When a man vows to God all his possessions, all his life, all his knowledge, it is a holocaust"; and afterwards he says that this refers to those who renounce the present world.

Reply to Objection: 1. Our Lord declared that it belongs to the perfection of life that a man follow Him, not anyhow, but in such a way as not to turn back. Wherefore He says again (Lc 9,62): "No man putting his hand to the plough, and looking back, is fit for the kingdom of God." And though some of His disciples went back, yet when our Lord asked (Jn 6,68-69), "Will you also go away?" Peter answered for the others: "Lord, to whom shall we go?" Hence Augustine says (De Consensu Ev. ii, 17) that "as Matthew and Mark relate, Peter and Andrew followed Him after drawing their boats on to the beach, not as though they purposed to return, but as following Him at His command." Now this unwavering following of Christ is made fast by a vow: wherefore a vow is requisite for religious perfection.
2. As Gregory says (Moral. ii) religious perfection requires that a man give "his whole life" to God. But a man cannot actually give God his whole life, because that life taken as a whole is not simultaneous but successive. Hence a man cannot give his whole life to God otherwise than by the obligation of a vow.
3. Among other services that we can lawfully give, is our liberty, which is dearer to man than aught else. Consequently when a man of his own accord deprives himself by vow of the liberty of abstaining from things pertaining to God's service, this is most acceptable to God. Hence Augustine says (Ep. cxxvii ad Paulin. et Arment.): "Repent not of thy vow; rejoice rather that thou canst no longer do lawfully, what thou mightest have done lawfully but to thy own cost. Happy the obligation that compels to better things."

Summa Th. II-II EN Qu.186 a.2