Proverbs 15:21 (NKJV) — 21 Folly is joy to him who is destitute of discernment, But a man of understanding walks uprightly.
A substitute for joy. Those who have no wisdom will mistake folly for joy. They are unable to see that folly is but a poor substitute. They may laugh, but their laughter is empty. (See Proverbs 14:13.) Those who are wise immediately see the emptiness of folly and reject it. In their understanding, they walk uprightly, and they will have true joy.
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