If a man says, I love God, and hates his brother, he is a liar: for he that loves not his brother whom he has seen, how can he love God whom he has not seen?
All Commentaries on 1 John 4:20 Go To 1 John 4
Cyprian of Carthage
AD 258
Also in the same place: "If any one shall say that he loves God, and hates his brother, he is a liar: for he who loveth not his brother whom he seeth, how can he love God whom he seeth not? "