Citations of
1Jn 5,9-12:
Ordo & Lectionnaire Missel:
358
Fathers
Basil: letters, hexaemeron:
251
Jerome:
192 635 656 679
Augustin: Letters:
463
The celebration
Ordo & Lectionnaire Missel:
374 3741
Magisterium
Fides et ratio EN:
9
Others
Fathers' Historical writings:
524