Proverbs 14:7

⁵ An honest witness does not deceive, but a dishonest witness pours forth lies.

⁶ A mocker seeks wisdom and finds none, but knowledge comes easily to the discerning.

Stay away from a foolish man; you will gain no knowledge from his speech.

⁸ The wisdom of the prudent is to discern his way, but the folly of fools deceives them.

⁹ Fools mock the making of amends, but goodwill is found among the upright.

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

Compare

BSB: Stay away from a foolish man; you will gain no knowledge from his speech.
KJV: Go from the presence of a foolish man, when thou perceivest not in him the lips of knowledge.
WEB: Stay away from a foolish man, for you won’t find knowledge on his lips.
ASV: Go into the presence of a foolish man, And thou shalt not perceive [in him] the lips of knowledge.
DARBY: Go from the presence of a foolish man, in whom thou perceivest not the lips of knowledge.
BLB: Depart from in front of a man [who is] foolish, for you will not know there the lips of knowledge.

ÅB: Når du går fra en dåre, har du ikke funnet forstand på hans lepper.
OTB: Gå bort fra en dåres nærvær, for du vil ikke finne kunnskapsord på hans lepper.
B1930: Når du går fra en dåre, har du ikke funnet forstand på hans leber.

Proverbs 13:20
He who walks with the wise will become wise, but the companion of fools will be destroyed.
Read in context
Ephesians 5:11
Have no fellowship with the fruitless deeds of darkness, but rather expose them.
Read in context
1 Corinthians 5:11
But now I am writing you not to associate with anyone who claims to be a brother but is sexually immoral or greedy, an idolater or a verbal abuser, a drunkard or a swindler. With such a man do not even eat.
Read in context
Proverbs 9:6
Leave your folly behind, and you will live; walk in the way of understanding.”
Read in context
Proverbs 19:27
If you cease to hear instruction, my son, you will stray from the words of knowledge.
Read in context