We are here taught how to value men, not by their wealth and preferment in the world, but by their virtue.
I. Good men are good for something. Though they may be poor and low in the world, and may not have power and riches to do good with, yet, as long as they have a mouth to speak, that will make them valuable and useful, and upon that account we must honour those that fear the Lord, because out of the good treasure of their heart they bring forth good things. 1. This makes them valuable: The tongue of the just is as choice silver; they are sincere, freed from the dross of guile and evil design. God's words are compared to silver purified (Psa 12:6), for they may be relied on; and such are the words of just men. They are of weight and worth, and will enrich those that hear them with wisdom, which is better than choice silver. 2. It makes them useful: The lips of the righteous feed many; for they are full of the word of God, which is the bread of life, and that sound doctrine wherewith souls are nourished up. Pious discourse is spiritual food to the needy, to the hungry.
II. Bad men are good for nothing. 1. One can get no good by them: The heart of the wicked is little worth, and therefore that which comes out of the abundance of his heart cannot be worth much. His principles, his notions, his thoughts, his purposes, and all the things that fill him, and affect him, are worldly and carnal, and therefore of no value. He that is of the earth speaks of the earth, and neither understands nor relishes the things of God, Joh 3:31; Co1 2:14. The wicked man pretends that, though he does not talk of religion as the just do, yet he has it within him, and thanks God that his heart is good; but he that searches the heart here says the contrary: It is nothing worth. 2. One can do no good to them. While many are fed by the lips of the righteous, fools die for want of wisdom; and fools indeed they are to die for want of that which they might so easily come by. Fools die for want of a heart (so the word is); they perish for want of consideration and resolution; they have no heart to do any thing for their own good. While the righteous feed others fools starve themselves.

The tongue of the just is as choice silver,.... Which utters things precious, pure, pleasant, and profitable; things for worth and value as choice silver; the doctrines of the Gospel, the power of which he has felt upon his heart; the precious promises of it, which have been applied unto him; and the rich experience of grace he has been favoured with: things pure and incorrupt, like silver free from dross; as the doctrines of grace, fetched out of the mines of the sacred Scripture, free from the dross of error, without any human mixture; consistent and all of a piece, and which tend to purity of heart and life; things the reverse of a corrupt communication, nothing filthy and unclean; a pure language, the language of Canaan; the language of repentance, faith, and love, of prayer and thankfulness: things which are grateful and acceptable, are with grace, and minister grace to the hearers; things profitable and edifying; for the righteous man's mouth speaks wisdom, and his tongue talks of judgment; and his lips feed many, as in Pro 10:21; see Psa 37:30;

the heart of the wicked is little worth; good for nothing, as the Vulgate Latin version. The righteous man's tongue is better than the wicked man's heart; there is no good thing in his heart naturally; all manner of evil is in it, and comes out of it; no sin can be named but what is in his heart; all that is in it is sinful; the thoughts of it, and the imagination of his thoughts, are only evil, and that continually; the affections are inordinate, and set on sinful lusts and pleasures; the mind and conscience are defiled with sin; the understanding is darkened with it, and the will is obstinate and perverse, and bent upon it: his heart is wicked, and exceedingly wicked; it is wickedness itself, very wickedness, desperately wicked, incurably so without the grace of God. Such therefore know not their hearts who say they have good hearts; and they are fools that trust in them: this shows the necessity of regeneration, and that powerful and efficacious grace is requisite to it.

Right speech is the fruit of a good heart, but the wicked show theirs to be useless.