Lay up - The point of the maxim is that the wise man reserves what he has to say for the right time, place, and persons (compare Matthew 7:6), as contrasted with the foolish, ever giving immediate utterance to what destroys himself and others.
Related Commentaries of Proverbs 10:14
Proverbs 10:14
14 Wise men lay up knowledge: but the mouth of the foolish is near destruction.