Proverbs 18:2

2 The fool hath no delight in understanding; But only that his heart may reveal itself therein. The verb חפץ forms the fut. יחפּץ as well as יחפּץ; first the latter from חפץ, with the primary meaning, to bow, to bend down; then both forms as intransitive, to bend oneself to something, to be inclined to something, Arab. 'ṭf. (Fl.). תּבוּנה is here the intelligence which consists in the understanding of one's own deficiency, and of that which is necessary to meet it. The inclination of the fool goes not out after such intelligence, but (כּי אם־; according to Ben-Naphtali, כי־אם) only that his heart, i.e., the understanding which he thinks that he already possesses, may reveal itself, show itself publicly. He thinks thereby to show himself in his true greatness, and to render a weighty service to the world. This loquacity of the fool, proceeding from self-satisfaction, without self-knowledge, has already, Pro 12:23, and often, been reprimanded.

A fool may pretend to understanding, and to seek and intermeddle with the means of it, but, 1. He has no true delight in it; it is only to please his friends or save his credit; he does not love his book, nor his business, nor his Bible, nor his prayers; he would rather be playing the fool with his sports. Those who take no pleasure in learning or religion will make nothing to purpose of either. No progress is made in them if they are a task and a drudgery. 2. He has no good design in it, only that his heart may discover itself, that he may have something to make a show with, something wherewith to varnish his folly, that that may pass off the better, because he loves to hear himself talk.