Is joy; he doth not only work wickedness, but taketh pleasure in it. Walketh uprightly, Heb. directeth or maketh straight his going, i.e. ordereth all his actions by the rule of God's word, and delighteth in so doing, which is understood from the opposite clause.
Related Commentaries of Proverbs 15:21
Proverbs 15:21
21 Folly is joy to him that is destitutec of wisdom: but a man of understanding walketh uprightly.