18For I have told you often before, and I say it again with tears in my eyes, that there are many whose conduct shows they are really enemies of the cross of Christ. 19They are headed for destruction. Their god is their appetite, they brag about shameful things, and they think only about this life here on earth. 20But we are citizens of heaven, where the Lord Jesus Christ lives. And we are eagerly waiting for him to return as our Savior. 21He will take our weak mortal bodies and change them into glorious bodies like his own, using the same power with which he will bring everything under his control.