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.

In the lips of him that hath understanding wisdom is found,.... He that has an understanding, especially of divine, spiritual, and evangelic things, which is the pure gift of God; wisdom will be found in his lips, his mouth will speak of it; not of mere natural wisdom, but spiritual wisdom; of the wisdom of God in his works; of Christ, the Wisdom of God; of the Gospel, the hidden wisdom; of inward experience of the grace of God, wisdom in the inward part, Psa 37:30; from his lips will drop wise sayings, very instructive and informing; which those that seek for and observe may find to their profit and advantage, and to the great credit and honour of the understanding man; while the foolish man gets both stripes and disgrace, as follows;

but a rod is for the back of him that is void of understanding; or, "wants a heart" (e): that has no understanding of spiritual things in his heart, and so utters nothing but what is foolish and wicked, and, sooner or later, is chastised for it. The Septuagint, Syriac, and Arabic versions, read this clause in connection with the former, thus; "he that brings forth wisdom out of his lips smites with a rod him that is void of understanding".

(e) "carcutis corde"; Montanus, Mercerus, Gejerus.

In the lips . . . found--hence, not beaten, as the wicked-speaking fool.

void of understanding-- (Pro 6:32; Pro 7:7).