3 Bible Verses about Wise Man Or Fool

They claimed to be wise, but became fools,

But God chose what the world considers foolish [i.e., people with little apparent ability], in order to shame the "wise people." And He chose what the world considers weak in order to shame what it considers strong.

I have a debt to pay [i.e., an obligation to preach] to Greeks and heathens; to the educated and to the ignorant.