Proverbs 15:23 - Matthew Poole's English Annotations on the Holy Bible

By the answer, i.e. by a wise or good and seasonable answer or advice, as is manifest, both from the opposite clause, and from the nature of the thing, because it is manifest and undeniable, that a foolish answer can be no credit nor comfort to the answerer. Thus above, Proverbs 15:10, the way is put for God's way; and such synecdoches are frequent in Scripture. A word spoken in due season, counsel or comfort given to another in fit time and manner, how good is it! it is highly acceptable and useful.