We have come to know and have believed the love which God has for us. God is love, and the one who remains in love remains in God, and God remains in him.
See how great a love the Father has given us, that we would be called children of God; and in fact we are. For this reason the world does not know us: because it did not know Him.
If someone says, “I love God,” and yet he hates his brother or sister, he is a liar; for the one who does not love his brother and sister whom he has seen, cannot love God, whom he has not seen.