Proverbs 17:28

²⁶ It is surely not good to punish the innocent or to flog a noble for his honesty.

²⁷ A man of knowledge restrains his words, and a man of understanding maintains a calm spirit.

Even a fool is considered wise if he keeps silent, and discerning when he holds his tongue.

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

Compare

BSB: Even a fool is considered wise if he keeps silent, and discerning when he holds his tongue.
KJV: Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding.
WEB: Even a fool, when he keeps silent, is counted wise. When he shuts his lips, he is thought to be discerning.
ASV: Even a fool, when he holdeth his peace, is counted wise; When he shutteth his lips, he is [esteemed as] prudent.
DARBY: Even a fool when he holdeth his peace is reckoned wise, [and] he that shutteth his lips, intelligent.
BLB: Even a fool keeping silent is considered wise, one shutting his lips discerning.

ÅB: Også dåren aktes for klok når han tier, for vis når han holder sine lepper lukket.
OTB: Selv en dåre regnes som vis hvis han forblir taus, og forstandig hvis han holder sin tunge.
B1930: Også dåren aktes for klok når han tier, for vis når han holder sine leber lukket.

Job 13:5
If only you would remain silent; for that would be your wisdom!
Read in context
Proverbs 15:2
The tongue of the wise commends knowledge, but the mouth of the fool spouts folly.
Read in context
Ecclesiastes 10:14
Yet the fool multiplies words. No one knows what is coming, and who can tell him what will come after him?
Read in context
Ecclesiastes 5:3
As a dream comes through many cares, so the speech of a fool comes with many words.
Read in context
Ecclesiastes 10:3
Even as the fool walks along the road, his sense is lacking, and he shows everyone that he is a fool.
Read in context