As was typical in Paul’s letters, he began this one with a greeting, a thanksgiving, and a prayer. In these, he didn’t waste any words but gave some previews of the major themes of the letter.
As the second Adam and the faithful Israel, Jesus resisted temptation and so can help us when we are tempted.
Jesus has authority and power over all things and is bringing the powers of darkness down.
While forgiving is always costly, those who have been forgiven can and must forgive others in turn.