Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man.
All Commentaries on Ecclesiastes 12:13 Go To Ecclesiastes 12
Augustine of Hippo
AD 430
What could be briefer, truer, better for the soul to know? For this is all a person is—a keeper of God’s commandments. Not being such, he is, so to say, nothing at all, because instead of being constantly reshaped to the image of the truth, he remains bogged down in the likeness of shadow.