More from Luther. The following is taken from the Small Catechism:
"And forgive us our trespasses,
as we forgive those who trespass against us."
What does this mean?
We pray in this petition that our Father in heaven would not look upon our sins, nor deny such petitions on account of them; for we are worthy of none of the things for which we pray, neither have we deserved them; but that He would grant them all to us by grace; for we daily sin much, and indeed deserve nothing but punishment.
So will we verily, on our part, also heartily forgive and also readily do good to those who sin against us.