19 For what can be known about God is plain to them, because God has shown it to them. 20 Ever since the creation of the world his invisible nature, namely, his eternal power and deity, has been clearly perceived in the things that have been made. So they are without excuse; 21 for although they knew God they did not honor him as God or give thanks to him, but they became futile in their thinking and their senseless minds were darkened. 22 Claiming to be wise, they became fools, 23 and exchanged the glory of the immortal God for images resembling mortal man or birds or animals or reptiles.