In this the children of God are manifest, and the children of the devil: whosoever does not righteousness is not of God, neither he that loves not his brother.
All Commentaries on 1 John 3:10 Go To 1 John 3
Augustine of Hippo
AD 430
Let him tell us this, let us see in what we cannot sin. In this are manifested the children of God and the children of the devil. Whosoever is not righteous is not of God, neither he that loves not his brother. 1 John 3:10 Aye, now indeed it is manifest of what he speaks: Neither he that loves not his brother. Therefore, love alone puts the difference between the children of God and the children of the devil. Let them all sign themselves with the sign of the cross of Christ; let them all respond, Amen; let all sing Alleluia; let all be baptized, let all come to church, let all build the walls of churches: there is no discerning of the children of God from the children of the devil, but only by charity. They that have charity are born of God: they that have it not, are not born of God. A mighty token, a mighty distinction! Have what you will; if this alone you have not, it profits you nothing: other things if you have not, have this, and you have fulfilled the law. For he that loves another has fulfilled the law, says the apostle: and, Charity is the fulfilling of the law. Romans 13:8, 10 I take this to be the pearl which the merchant man in the Gospel is described to have been seeking, who found one pearl, and sold all that he had, and bought it. Matthew 13:46 This is the pearl of price, Charity, without which whatever you may have, profits you nothing: which if alone you have, it suffices you. Now, with faith you see, then with actual beholding you shall see. For if we love when we see not, how shall we embrace it when we see! But wherein must we exercise ourselves? In brotherly love. You may say to me, I have not seen God: can you say to me, I have not seen man? Love your brother. For if you love your brother whom you see, at the same time you shall see God also; because you shall see Charity itself, and within dwells God.