And forgive us our debts, as we forgive our debtors. – Matthew 6:12

There has been something very offensive said. What then? Do not repeat it. Do not go first to one, and then to another, and say, “Now this is quite private, and mind you keep it a secret. So-and-so has spoken shamefully.” Better that you should let your heart break than go up and down with a fire-brand in this fashion. If a brother has done wrong why should you do wrong? You will be doing wrong if you publish his fault…Charity covereth a multitude of sins. Not only one, two, three sins will charity cover, but she carries a cloak which covereth a whole host of faults.

Above all, my brethren, never in any way, directly or indirectly, avenge yourselves. For any fault that is ever done to you, the Master says unto you, -resist not evil. In all things bend, bow, yield, submit. “If you tread on a worm it will turn,” says somebody. And is a worm your example? Christ shall be mine. It is a shocking thing when a Christian man forgets his Lord to find an excuse for himself among the poor creatures under his feet. But if it must be so, what does a worm do when it turns? When you have trodden on a worm, does it bite? Does the worm hurt anyone? Ah, no. It has turned, but it has turned in its agony and writhed before you, that is all. You may do that, if you must. Brother, the most splendid vengeance you can ever have is to do good to them that do you evil, and to speak well of them that speak ill of you. They will be ashamed to look at you; they will never hurt you again if they see that you cannot be provoked except it be to greater love and larger kindness….This is the kind of doctrine which Christ Himself preached, and therefore, since He preached continually this love to our neighbour, and forgiveness of our enemies, we ought both to preach and to practise it. Go ye and believe in Him, and be imitators of Him, remembering that He forgave His murderers upon the cross whereon He wrought out our redemption. May His Spirit rest upon you evermore. Amen. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1448.cfm