Jesus told a parable to illustrate the need for forgiving others.

Matthew 18:21-35

21 Then Peter approached Jesus and said to him, “How many times must I forgive a fellow believer who keeps on sinning against me? If he keeps asking me to forgive him, must I forgive him as many as seven times?” 22 Jesus said to him, “I tell you that the number of times you must forgive someone is not just up to seven, but you must ◄forgive him 77 times/never stop forgiving him►. 23 In order to illustrate why you should do this, I will tell you a story in which God [MTY/EUP], who cares for the people whose lives he rules over, is compared {I compare God, who cares for the people whose lives he rules over} to a king and his officials. That king told some of his servants that he wanted his officials to pay what they owed him. 24 So those officials were brought to the king to settle their accounts with him. One of the officials who were brought owed the king several million dollars. 25 But because he did not have enough money to pay what he owed, the king demanded that he, his wife, his children and all he possessed be sold to someone else, and that the king be repaid with {receive} the money that was paid for them. 26 Then that official, knowing that he did not have the money to pay that huge debt, fell on his knees in front of the king and begged him saying, ‘Be patient with me, and I will pay you all of it, eventually.’ 27 The king, knowing that the official could never pay all that huge debt, felt sorry for him. So he canceled his debt and released him. 28 Then this official went to another one of the king’s officials who owed him a bit less than a year’s wages. He grabbed him by the throat, started choking him, and said to him, ‘Pay back what you owe me!’ 29 That official fell on his knees and begged him saying, ‘Be patient with me, and I will pay you all of it, eventually.’ 30 But this official kept refusing to cancel that small debt that the man owed him. Instead, he caused that official to be put in prison and to stay there until he could pay back all the money that he owed him. 31 When the other officials of the king learned that this had happened, they felt very distressed. So they went to the king and reported in detail what had happened. 32 Then the king summoned the official who had owed him several million dollars. He said to him, ‘You wicked servant! I canceled that huge debt that you owed me because you begged me to do so 33 You should have been merciful and canceled your fellow official’s debt, just like I was merciful to you and canceled your debt [RHQ]!’ 34 The king was very angry. He handed this official over to some jailers who would torture him severely until he paid all of the debt that he owed.” 35 Then Jesus continued by saying, “That is what my Father in heaven will do to you if you do not feel merciful and sincerely forgive a fellow believer who sins against you.”