Jesus taught that we should not be angry, and that we should quickly settle accounts with those whom we have wronged.

Matthew 5:21-26

21 “You have heard your religious teachers say that it was said {that Moses said} to your ancestors, ‘Do not murder anyone.’ This implied that if someone murders another person, the judge will condemn that person and sentence him to be executed {say that someone must execute him}. 22 But what I say to you is this: If you are angry with someone, God will judge you. If you say to someone, ‘You are worthless,’ the Jewish Council will judge you. If you hate someone, and say to them 'You fool!' you. yourself, will be in danger of being thrown into the fires in hell.

23 So, when you take your gift for God to the altar, if you remember that you have offended someone, 24 leave your gift by the altar, and first go to the person you have offended. Tell that person that you are sorry for what you have done, and ask that person to forgive you. Then go back and offer your gift to God. 25 Also, when a fellow citizen takes you to court in order to accuse you, settle accounts with that person quickly while you are walking with that person to court. Do that while there still is time to do so in order that he will not take you to the judge, because if the judge favors the person who is accusing you, he will declare that you are guilty and send you to the prison guard, and the prison guard will put you in prison. 26 Keep this in mind: If you go to prison, you will never get out because you will never be able to pay all that the judge says that you owe [MET]. And remember also that you ought to settle accounts with God before you die, too.”