Romans 1:23 : And changed the glory of the incorruptible God for the likeness of an image of corruptible man, and of birds, and four-footed beasts, and creeping things. The glory of God is here used in contrast with the shame of idolatry, and God is described as incorruptible in contrast with corruptible man. These nations had known God, but had turned from that knowledge to their own speculations. When men come to rely on their own speculations instead of on the sure knowledge of God, they will, sooner or later, repudiate him altogether. Men naturally want to deny the exist-ence of a God whom they will not honor. They will change him off for something else. The nations changed the glorious God for the various images com-mon to idolaters. They rejected the One from whom all blessings come, and worshiped everything else that seemed to be of any benefit to them, and also the things which they feared.