Proverbs 12:23
A shrewd man keeps his knowledge to himself, but a foolish heart proclaims its folly.
Treasury of Scripture Knowledge

prudent

Proverbs 10:19
When words are many, sin is unavoidable, but he who restrains his lips is wise.

Proverbs 11:13
A gossip reveals a secret, but a trustworthy person keeps a confidence.

Proverbs 13:16
Every prudent man acts with knowledge, but a fool displays his folly.

but

Proverbs 15:2
The tongue of the wise commends knowledge, but the mouth of the fool spouts folly.

Ecclesiastes 10:3, 12-14
Even as the fool walks along the road, his sense is lacking, and he shows everyone that he is a fool. . . .

Parallel Verses
New American Standard Bible
A prudent man conceals knowledge, But the heart of fools proclaims folly.

King James Bible
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.

Holman Christian Standard Bible
A shrewd person conceals knowledge, but a foolish heart publicizes stupidity.

International Standard Version
A prudent man keeps what he knows to himself, but the hearts of fools shout forth their foolishness.

NET Bible
The shrewd person conceals knowledge, but foolish people publicize folly.

Aramaic Bible in Plain English
A cunning man is a seat of knowledge, and the heart of fools proclaims evil.
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