Matthew 5:23 Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath ought against thee;  :24 Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift.

 (Mat 6:12)  And forgive us our debts, as we forgive our debtors. 

Forgive

Stop blamingTo excuse for a fault or an offense; pardon.To renounce anger or resentment against.

                Renounce - Turn away from; give up

debtors

A person who owes a creditor; someone who has the obligation of paying a debt 

Mat 6:14-18  For if ye forgive men their trespasses, your heavenly Father will also forgive you:  :15  But if ye forgive not men their trespasses, neither will your Father forgive your trespasses. :16  Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward. :17  But thou, when thou fastest, anoint thine head, and wash thy face; :18  That thou appear not unto men to fast, but unto thy Father which is in secret: and thy Father, which seeth in secret, shall reward thee openly.

Mat 18:21-35  Then came Peter to him, and said, Lord, how oft shall my brother sin against me, and I forgive him? till seven times?:22  Jesus saith unto him, I say not unto thee, Until seven times: but, Until seventy times seven.:23  Therefore is the kingdom of heaven likened unto a certain king, which would take account of his servants.: