We love Him because He first loved us.
1 John 4:19
Surrounding context
4:18 There is no fear in love; but perfect love casts out fear, because fear involves torment. But he who fears has not been made perfect in love.
4:19 We love Him because He first loved us.
4:20 If someone says, "I love God," and hates his brother, he is a liar; for he who does not love his brother whom he has seen, how can he love God whom he has not seen?