A shrewd man keeps his knowledge to himself, but a foolish heart proclaims its folly.
Note, 1. He that is wise does not affect to proclaim his wisdom, and it is his honour that he does not. He communicates his knowledge when it may turn to the edification of others, but he conceals it when the showing of it would only tend to his own commendation.
A prudent man concealeth knowledge,.... Of things natural or divine, which he is furnished with; not but that he is willing to communicate it, as he should, at proper times, in proper places, and to proper persons; but he does not needlessly and unseasonably speak of it; he does not make a show of it, or boast and brag of it: he modestly forbears to...
concealeth--by his modesty (Pro 10:14; Pro 11:13). heart . . . proclaimeth--as his lips speak his thoughts (compare Ecc 10:3).