Proverbs 14:33

Wisdom resteth in the heart of him that hath understanding,.... It is in his heart, as the treasury where it is laid up, and where it is kept in safety; here it lies hid and undiscerned, unmolested and undisturbed; no noise is made about it, or any ostentation of it; it dwells quietly and constantly there;but [that which is] in the midst of fools is made known; the least share of knowledge which such persons have, or think they have, does not lie long in the midst of them; they take every opportunity of showing it to others, or of letting others know what they have attained to; and thereby, instead of getting the character of wise and prudent men, obtain that of fools; for, though a prudent man is communicative of his knowledge to others, it is at proper times, and in proper places, and to proper persons, which fools do not observe; but, without any manner of judgment or discretion, or regard to persons, places, and seasons, vainly thrust out their knowledge, and so proclaim their folly.