And be ye kind one to another, tenderhearted, forgiving one another, even as God for Christ’s sake hath forgiven you. – Ephesians 4:32

“Forgiving one another.” You forgive me, and I forgive you, and we forgive them, and they forgive us, and so a circle of unlimited forbearance and love goes round the world. There is something wrong about me that needs to be forgiven by my brother, but there is also something wrong about my brother which needs to be forgiven by me, and this is what the apostle means-that we are all of us mutually to be exercising the sacred art and mystery of forgiving one another. If we always did this we should not endure those who have a special faculty for spying out faults. There are some who, whatever church they are in, always bring an ill report of it. I have heard this sort of thing from many-“There is no love among Christians at all.” I will tell you the character of the gentleman who makes that observation; he is both unloving and unlovely, and so he is out of the track of the pilgrims of love. Another cries, “There is no sincerity in the world now.” That man is a hypocrite: be you quite sure of that. Judge a bird by its song, and a man by his utterance. The censorious measure our corn, but they use their own bushels. You may know very well what a man is by what he says of others. It is a gauge of character which very seldom will deceive you, to judge other men by their own judgment of their fellows. Their speech betrays their heart. Show me your tongue, sir! Now I know whether you are sick or well. He that speaketh with an ill tongue of his neighbour hath an ill heart; rest assured of that. Let us begin our Christian career with the full assurance that we shall have a great deal to forgive in other people, but that there will be a great deal more to be forgiven in ourselves, and let us set our account upon having to exercise gentleness, and needing its exercise from others, “Forgiving one another, even as God for Christ’s sake hath forgiven you.” ~ C.H. Spurgeon

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