73. The Lord teaches good and loving actions in many passages in the Word. He teaches such actions in Matthew when he instructs us to be reconciled with our neighbor:
If you bring your gift to the altar and in doing so remember that your brother or sister has something against you, leave your gift there in front of the altar. First be reconciled with your brother or sister, and then come and offer your gift. And be kind and generous to your adversary when you are both on the way [to court], to keep your adversary from turning you over to a judge, keep the judge from turning you over to an officer, and keep you from being thrown in prison. I tell you in truth, you will not be released until you have paid the last penny. (Matthew 5:23-26)
Being reconciled with our brother or sister is turning our backs on hostility, hatred, and vengefulness. We can see that this is turning our backs on these evils because they are sins.
The Lord also tells us in Matthew,
Whatever you want people to do for you, you do the same for them. This is the Law and the Prophets. (Matthew 7:12)
[We should do] nothing evil, then; and [this is said] quite often elsewhere. Then too, the Lord tells us that killing is also being angry with our sister or brother or neighbor for no good reason and harboring hatred against them (see Matthew 5:21-22).
