The lips of the wise spread knowledge, but not so the hearts of fools.
This is to the same purport with Pro 15:2, and shows what a blessing a wise man is and what a burden a fool is to those about him. Only here observe further, 1. That we then use knowledge aright when we disperse it, not confine it to a few of our intimates, and grudge it to others who would make as good use of...
The lips of the wise disperse knowledge,.... Scatter it about for the benefit of others; they are communicative and diffusive of it unto others, that fruit may abound to their account: so the first ministers of the Gospel diffused the savour of the knowledge of Christ and his Gospel in every place; their words went into all the earth, and their sound to the end...
(Compare Pro 10:20-21). heart . . . not so--not right, or vain.