Proverbs 12:23

21 No harm befalls the righteous, but the wicked are filled with trouble.

22 Lying lips are detestable to the LORD, but those who deal faithfully are His delight.

A shrewd man keeps his knowledge to himself, but a foolish heart proclaims its folly.

24 The hand of the diligent will rule, but laziness ends in forced labor.

25 Anxiety weighs down the heart of a man, but a good word cheers it up.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
A shrewd man keeps his knowledge to himself, but a foolish heart proclaims its folly.
KJV
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.
WEB
A prudent man keeps his knowledge, but the hearts of fools proclaim foolishness.
ASV
A prudent man concealeth knowledge; But the heart of fools proclaimeth foolishness.
DARBY
A prudent man concealeth knowledge; but the heart of the foolish proclaimeth folly.
BLB
A prudent man is concealing knowledge, and the heart of stupid ones calls out folly.
ÅB
Et klokt menneske skjuler det han vet, men dårers hjerte roper ut sin dårskap.
OTB
De kloke holder sin kunnskap for seg selv, men dårers hjerte utbasunerer dårskap.
B1930
Et klokt menneske skjuler det han vet, men dårers hjerte roper ut sin dårskap.

Study notes (Tyndale)

Original text and word study

Cross references