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Matthew 18:21Then came Peter to him, and said, Lord, how oft shall my brother sin against me, and I forgive him? till seven times?

Matthew18:22 Jesus saith unto him, I say not unto thee, Until seven times: but, Until seventy times seven.

Peter was thinking you forgive 7x in a day, and Jesus

added for 70 years you forgive during the 7 prayer hours of the day and night "Watches"