Thematic Bible: Who became vain

This therefore I say and testify in the Lord, [that] you no longer walk as the Gentiles walk: in the futility of their mind, being darkened in understanding, alienated from the life of God, because of the ignorance [that] is in them, because of the hardness of their heart, who, becoming callous, gave themselves over to licentiousness, for the pursuit of all uncleanness in greediness.

For the wrath of God is revealed from heaven against all impiety and unrighteousness of people, who suppress the truth in unrighteousness, because what can be known about God is evident among them, for God made [it] clear to them. For from the creation of the world, his invisible [attributes], both his eternal power and deity, are discerned clearly, being understood in the things created, so that they are without excuse. read more.
For [although they] knew God, they did not honor [him] as God or give thanks, but they became futile in their reasoning, and their senseless hearts were darkened. Claiming to be wise, they became fools, and exchanged the glory of the immortal God with the likeness of an image of mortal human beings and birds and quadrupeds and reptiles.