Thematic Bible: Who became vain

So I mean this and now testify to it in the name of the Lord: You must now stop living as the heathen usually do, in the frivolity of their minds, with darkened understanding, estranged from the life of God because of the ignorance that exists among them and because of the stubbornness of their hearts; for in their recklessness they have abandoned themselves to sensuality which leads to excessive practices of all sorts of immorality.

For God's anger from heaven is being uncovered against all the impiety and wickedness of the men who in their wickedness are suppressing the truth; because what can be known of God is clear to their inner moral sense; for in this way God Himself has shown it to them. Forever since the creation of the world, His invisible characteristics -- His eternal power and divine nature -- have been made intelligible and clearly visible by His works. So they are without excuse, read more.
because, although they once knew God, they did not honor Him as God, or give Him thanks, but became silly in their senseless speculations, and so their insensible hearts have been shrouded in darkness. Though claiming to be wise, they made fools of themselves, and have transformed the splendor of the immortal God into images in the form of mortal man, birds, beasts, and reptiles.