11 The mouth of a righteous man is a well of life: but violence covereth the mouth of the wicked.

      See here, 1. How industrious a good man is, by communicating his goodness, to do good with it: His mouth, the outlet of his mind, is a well of life; it is a constant spring, whence issues good discourse for the edification of others, like streams that water the ground and make it fruitful, and for their consolation, like streams that quench the thirst of the weary traveller. It is like a well of life, that is pure and clean, not only not poisoned, but not muddled, with any corrupt communication. 2. How industrious a bad man is, by concealing his badness, to do hurt with it: The mouth of the wicked covers violence, disguises the designed mischief with professions of friendship, that it may be carried on the more securely and effectually, as Joab kissed and killed, Judas kissed and betrayed; this is his sin, to which the punishment answers (v. 6): Violence covers the mouth of the wicked; what he got by violence shall by violence be taken from him, Job v. 4, 5.

      13 In the lips of him that hath understanding wisdom is found: but a rod is for the back of him that is void of understanding.

      Observe, 1. Wisdom and grace are the honour of good men: He that has understanding, that good understanding which those have that do the commandments, wisdom is found in his lips, that is, it is discovered to be there, and consequently that he has within a good treasure of it, and it is derived thence for the benefit of others. It is a man's honour to have wisdom, but much more to be instrumental to make others wise. 2. Folly and sin are the shame of bad men: A rod is for the back of him that is void of understanding--of him that wants a heart; he exposes himself to the lashes of his own conscience, to the scourges of the tongue, to the censures of the magistrate, and to the righteous judgments of God. Those that foolishly and wilfully go on in wicked ways are preparing rods for themselves, the marks of which will be their perpetual disgrace.

      14 Wise men lay up knowledge: but the mouth of the foolish is near destruction.

      Observe, 1. It is the wisdom of the wise that they treasure up a stock of useful knowledge, which will be their preservation: Wisdom is therefore found in their lips (v. 13), because it is laid up in their hearts, out of which store, like the good householder, they bring things new and old. Whatever knowledge may be at any time useful to us we must lay it up, because we know not but some time or other we may have occasion for it. We must continue laying up as long as we live; and be sure to lay it up safely, that it may not be to seek when we want it. 2. It is the folly of fools that they lay up mischief in their hearts, which is ready to them in all they say, and works terror and destruction both to others and to themselves. They love devouring words (Ps. lii. 4), and these come uppermost. Their mouth is near destruction, having the sharp arrows of bitter words always at hand to throw about.

      20 The tongue of the just is as choice silver: the heart of the wicked is little worth.   21 The lips of the righteous feed many: but fools die for want of wisdom.

      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 (Ps. xii. 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, John iii. 31; 1 Cor. ii. 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.

      31 The mouth of the just bringeth forth wisdom: but the froward tongue shall be cut out.   32 The lips of the righteous know what is acceptable: but the mouth of the wicked speaketh frowardness.

      Here, as before, men are judged of, and, accordingly, are justified or condemned, by their words, Matt. xii. 37. 1. It is both the proof and the praise of a man's wisdom and goodness that he speaks wisely and well. A good man, in his discourse, brings forth wisdom for the benefit of others. God gives him wisdom as a reward of his righteousness (Eccl. ii. 26), and he, in gratitude for that gift and justice to the giver, does good with it, and with his wise and pious discourses edifies many. He knows what is acceptable, what discourse will be pleasing to God (for that is it that he studies more than to oblige the company), and what will be agreeable both to the speaker and to the hearers, what will become him and benefit them, and that he will speak. 2. It is the sin, and will be the ruin, of a wicked man, that he speaks wickedly like himself. The mouth of the wicked speaks frowardness, that which is displeasing to God and provoking to those he converses with; and what is the issue of it? Why, the froward tongue shall be cut out, as surely as the flattering one, Ps. xii. 3.