For if ye forgive men their trespasses, your heavenly Father will also forgive you:
But if ye forgive not men their trespasses, neither will your Father forgive your trespasses.
(Matthew 6:14-15)
There is more to forgiveness than having God forgive us of our sins. Forgiveness also involves us forgiving those that have wronged us. It’s not always an easy thing to do. The “natural man” within us doesn’t like to let things go. Holding a grudge, or holding a wrong deed over someone’s head to cause them endless guilt, is often our view of justice. But this isn’t so. We know that it’s not our place to judge, so we are commanded to forgive others.
In the Book of Mormon, the Lord told the prophet Alma this:
And ye shall also forgive one another your trespasses; for verily I say unto you, he that forgiveth not his neighbor’s trespasses when he says that he repents, the same hath brought himself under condemnation. (Mosiah 26:31)
If we cannot forgive others of personal and often minor offenses, how can we expect our Heavenly Father to forgive us of our disobedience to His commandments? Let us not judge one another, but instead love and forgive one another. In this way can charity, the pure love of Christ, abound within us.
Closer Than We Think 