Cross reference
Matthew 18:21
21 Then came Peter and said to him, Lord, how oft shall my brother sin against me, and I forgive him? until seven times?
Luke 17:3-4
3 Take heed to yourselves: if thy brother sin, rebuke him; and if he repent, forgive him.
4 And if he sin against thee seven times in the day, and seven times turn again to thee, saying, I repent; thou shalt forgive him.
Matthew 18:15
15 And if thy brother sin against thee, go, show him his fault between thee and him alone: if he hear thee, thou hast gained thy brother.