'Forgive' in the Bible

"Why does this man speak blasphemies like that? Who can forgive sins but God alone?"

But that you may know that the Son of Man has authority on earth to forgive sins" -- he said to the paralytic --

Whenever you stand praying, forgive, if you have anything against anyone; so that your Father, who is in heaven, may also forgive you your transgressions.

But if you do not forgive, neither will your Father in heaven forgive your transgressions."