ACC ~ 1 John 3 v6

ONE WHO SINS IS OUTSIDE CHRIST. DIDYMUS THE BLIND: Just as the person who dwells in virtue and true doctrine does not sin and is not ignorant, so the one who remains in Christ, who is his righteousness and sanctification, does not sin. For how can someone act unrighteously when he is in the company of righteousness, and how can he be content to place corruption alongside holiness? Therefore anyone who sins is outside Christ and has no part or fellowship in him. COMMENTARY ON 1 JOHN.

SINNERS DO NOT SEE CHRIST. HILARY OF ARLES: Sinners have not seen Christ with the eye of faith, nor have they known him by putting that faith into practice in the right way. INTRODUCTORY COMMENTARY ON 1 JOHN.

NO ONE WHO ABIDES IN HIM SINS. ANDREAS: How can someone sin if he is not cut off from God in any way? CATENA.

NO ONE WHO SINS HAS SEEN HIM OR KNOWN HIM. BEDE: We cannot sin to the extent that we remain in Christ. John is speaking here about the vision and knowledge by which the righteous are able to enjoy God in this life, until they come to that perfect vision of him which will be revealed to them at the end of time. ON 1 JOHN.

1 Jn