'Letting' in the Bible

And He said to them, “Follow Me [as My disciples, accepting Me as your Master and Teacher and walking the same path of life that I walk], and I will make you fishers of men.”

For if you forgive others their trespasses [their reckless and willful sins], your heavenly Father will also forgive you.

But if you do not forgive others [nurturing your hurt and anger with the result that it interferes with your relationship with God], then your Father will not forgive your trespasses.