ACC ~ 1 John 2 v3

KNOWING AND DOING. CLEMENT OF ALEXANDRIA: The one who understands will also do the works which pertain to the duty of virtue, but someone who does the works is not necessarily among those who understand. For he may just be someone who understands the difference between right and wrong but who has no knowledge of the heavenly mysteries. Furthermore, knowing that some people do the right thing out of fear of punishment or for some kind of reward, John teaches that a man of perfect understanding does these things out of love. ADUMBRATIONS.

BY THIS WE KNOW HIM. DIDYMUS THE BLIND: Often in the Scriptures the word know means not just being aware of something but having personal experience of it. Jesus did not know sin, not because he was unaware of what it is but because he never committed it himself. For although he is like us in every other way, he never sinned. Given this meaning of the word know, it is clear that anyone who says that he knows God must also keep his commandments, for the two things go together. COMMENTARY ON 1 JOHN.

IF WE KEEP HIS COMMANDMENTS. ANDREAS: John shows here that true knowledge means demonstrating that one is faithful to Christ by obeying his commandments. CATENA.

1 Jn