Luke 6:32 "If you love those who love you, what credit is that to you? Even 'sinners' love those who love them. ~Jesus
1 John 4:19-21 We love because he first loved us. If anyone says, "I love God," yet hates his brother, he is a liar. For anyone who does not love his brother, whom he has seen, cannot love God, whom he has not seen. And he has given us, this command: Whoever loves God must also love his brother.
Romans 12:17-19 Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everyone. Do not take revenge my friends, but leave room for God's wrath, for it is written: "It is mine to avenge; I will repay," says the Lord.