If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?
1 John 4:20
King James Version (public domain)
Traditionally attributed to John · 1st century AD · One of the twelve apostles of Jesus; the "beloved disciple"
Context
18There is no fear in love; but perfect love casteth out fear: because fear hath torment. He that feareth is not made perfect in love.
19We love him, because he first loved us.
20If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?
21And this commandment have we from him, That he who loveth God love his brother also.