The thought of foolishness is sin. — Rather, Sin is the contrivance (plotting) of self-will. Sin is the “transgression of the law” of God (1 John 3:4), when we desert the plain rule of duty, and plot how we can indulge our own self-will.
Related Commentaries of Proverbs 24:9
Proverbs 24:9
9 The thought of foolishness is sin: and the scorner is an abomination to men.