The mouth of the foolish is near destruction — i.e., is a near, ever-threatening calamity; one never knows what awkward or dangerous thing he will not say next: whereas wise men store up knowledge, and bring it forth as it is wanted (Matthew 13:52).
Related Commentaries of Proverbs 10:14
Proverbs 10:14
14 Wise men lay up knowledge: but the mouth of the foolish is near destruction.