Proverbs 16:23

21 The wise in heart shall be called prudent: and the sweetness of the lips increaseth learning.

22 Understanding is a wellspring of life unto him that hath it: but the instruction of fools is folly.

The heart of the wise teacheth his mouth, and addeth learning to his lips.

24 Pleasant words are as an honeycomb, sweet to the soul, and health to the bones.

25 There is a way that seemeth right unto a man, but the end thereof are the ways of death.

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

Compare

BSB
The heart of the wise man instructs his mouth and adds persuasiveness to his lips.
KJV
The heart of the wise teacheth his mouth, and addeth learning to his lips.
WEB
The heart of the wise instructs his mouth, and adds learning to his lips.
ASV
The heart of the wise instructeth his mouth, And addeth learning to his lips.
DARBY
The heart of the wise maketh his mouth intelligent, and upon his lips increaseth learning.
BLB
The heart of the wise causes his mouth to act wisely, and upon his lips he increases learning.
ÅB
Den vises hjerte gjør hans munn forstandig og legger mere og mere lærdom på hans lepper.
OTB
De vises hjerte gjør deres munn klok, og deres lepper fremmer læring.
B1930
Den vises hjerte gjør hans munn forstandig og legger mere og mere lærdom på hans leber.

Study notes (Tyndale)

Original text and word study

Cross references