Paul wrote to the church in Colossae to fortify it against false teachers who might try to impose strict rules about eating and drinking and religious festivals. Paul shows the superiority of Christ over all human philosophies and traditions. He writes of Christ's deity ("He is the image of the invisible God, the firstborn of all creation" [1:15]) and of the reconciliation he accomplished with his blood. He explains that the right way of living in this world is to focus on heavenly rather than earthly things. God's chosen people must leave their sinful lives behind and live in a godly way, looking to Christ as the head of the church (1:18). Paul wrote while in prison, probably about the same time as he wrote to the Ephesians.