"A spirit of forgiveness and an attitude of love and compassion toward those who may have wronged us is of the very essence of the gospel of Jesus Christ. Each of us has need of this spirit. The whole world has need of it. The Lord taught it. He exemplified it as none other has exemplified it.
"In the time of his agony on the cross of Calvary, with vile and hateful accusers before him, those who had brought him to this terrible crucifixion, he cried out, “Father, forgive them; for they know not what they do.” (Luke 23:34.)
"None of us is called on to forgive so generously, but each of us is under a divinely spoken obligation to reach out with pardon and mercy. The Lord has declared in words of revelation: “My disciples, in days of old, sought occasion against one another and forgave not one another in their hearts; and for this evil they were afflicted and sorely chastened.
“Wherefore, I say unto you, that ye ought to forgive one another; for he that forgiveth not his brother his trespasses standeth condemned before the Lord; for there remaineth in him the greater sin.
“I, the Lord, will forgive whom I will forgive, but of you it is required to forgive all men.
Real full talk here
By President Gordon B. Hinckley, Of You It Is Required to Forgive, June 1991: