Although they claimed to be wise, they became fools,

Isaiah 44:20
He feeds on ashes. His deluded heart has led him astray, and he cannot deliver himself or say, "Is not this thing in my right hand a lie?"

Jeremiah 4:22
"For My people are fools; they have not known Me. They are foolish children, without understanding. They are skilled in doing evil, but they know not how to do good."

Jeremiah 8:8
How can you say, 'We are wise, and the Law of the LORD is with us,' when in fact the lying pen of the scribes has produced a deception?

Jeremiah 10:14
Every man is senseless and devoid of knowledge; every goldsmith is put to shame by his idols. For his molten images are a fraud, and there is no breath in them.

1 Corinthians 1:20
Where is the wise man? Where is the scribe? Where is the philosopher of this age? Has not God made foolish the wisdom of the world?

Professing themselves to be wise, they became fools,