If wisdom is putting into practice the principles our wise Creator God has given us, then foolishness must be the opposite. In fact, God says that fools are those who deny He exists (Psalm 14:1). A fool hates wisdom and instruction (Proverbs 1:7) and enjoys doing what is wrong according to God (Proverbs 14:16).
And yet, because God has told us He exists and has given us evidence of His existence everywhere we look, people who choose to be fools don’t have any excuse for their foolishness (Romans 1:18–23).
In fact, we are all born as fools . . . .