John Gill's Bible Commentary Ver. 8. The wise in heart will receive commandments , etc.] Such who have true wisdom in the hidden part of the heart, of which the fear of the Lord is the beginning: these will not only, as good subjects, honour their king, and attend to his lawful commands; and, as dutiful children, regard those of their parents; and, as faithful servants, hearken to those of their masters; but, as such that fear the Lord, will receive and cheerfully obey the commandments of God and Christ; but a prating fool shall fall ; like Diotrephes, that prated against the Apostle John and other saints. Or, “a fool of lips” f267 ; whose folly is proclaimed and made known by his lips; who, out of the abundance of it in his heart, speaks and pours it out by his lips: such an one falls into sin and into mischief; he falls into disgrace in this world, and into hell in the next.
The Targum is, “the fool by his lips shall be taken;” as in a snare.
Matthew Henry Commentary
Verses 8 - The wise in heart puts his knowledge in practice.
Original Hebrew חכם2450 לב3820 יקח3947 מצות4687 ואויל191 שׂפתים8193 ילבט׃3832