Augustine of Hippo, on 1John 3:9

“Whosoever is born of God, committeth not sin: for his seed abideth in him, and he can not sin, because he is born of God.”

“For it is no slight question, how he saith in this Epistle, "Whosoever is born of God, sinneth not," and how in the same Epistle he hath said above, "If we say that we have no sin, we deceive ourselves, and the truth is not in us." What shall the man do, who is pressed by both sayings out of the same Epistle? If he shall confess himself a sinner, he fears lest it be said to him, Then art thou not born of God; because it is written, "Whosoever is born of God, sinneth not." But if he shall say that he is just and that he hath no sin, he receives on the other side a blow from the same Epistle, "If we say that we have no sin, we deceive ourselves, and the truth is not in us." Placed then as he is in the midst, what he can say and what confess, or what profess, he cannot find.”

Imported from an open dataset — not yet checked against the printed edition.