…even as God for Christ’s sake hath forgiven you. – Ephesians 4:32

If anyone who is a Christian finds a difficulty in forgiveness, I am going to give him three words which will help him wonderfully. I would put them into the good man’s mouth. I gave them to you just now and prayed you to get the sweetness of them; here they are again! “For Christ’s sake.” Cannot you forgive an offender on that ground? Ah, the girl has acted very shamefully, and you, her father, have said some strong things, but I beg you to forgive her for Christ’s sake. Cannot you do it with that motive? It is true your son has behaved very wrongly, and nothing hurts a father’s heart more than the wicked conduct of a son. You did in a fit of anger say a very stern thing and denied him your house for ever. I entreat you to eat your words up for Christ’s sake. Sometimes when I have been pleading a case like that, the person I have been persuading has kindly said, “I will do it for you, sir.” I have said, “I will thank you if you will do it at all, but I would rather you would have said you would do it for my Master, for what a blessed Master He has been to you! Do it for His sake.” I may be speaking very plainly home to some of you. I hope I am. If there be any of you who have got into a bad state of heart and have said you never will forgive a rebellious son, do not say so again till you have looked at the matter, for Christ’s sake. Not for the boy’s sake, not for your neighbour’s sake who has offended you, not for any other reason do I urge you to mercy, but for Christ’s sake. Come, you two brothers, who have fallen out, love each other for Christ’s sake; come, you two sisters, come you two friends who have been alienated, get together directly, and end all your ill feeling for Christ’s sake. You must not keep a drop of malice in your soul, for Christ’s sake. Oh charming word, how it melts us, and as it melts it seems to leave no trace of anger behind it: for Christ’s sake our love suffers long and never fails. ~ C.H. Spurgeon

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