Proverbs 16:13

¹¹ Honest scales and balances are from the LORD; all the weights in the bag are His concern.

¹² Wicked behavior is detestable to kings, for a throne is established through righteousness.

Righteous lips are a king’s delight, and he who speaks honestly is beloved.

¹⁴ The wrath of a king is a messenger of death, but a wise man will pacify it.

¹⁵ When a king’s face brightens, there is life; his favor is like a rain cloud in spring.

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

Compare

BSB: Righteous lips are a king’s delight, and he who speaks honestly is beloved.
KJV: Righteous lips are the delight of kings; and they love him that speaketh right.
WEB: Righteous lips are the delight of kings. They value one who speaks the truth.
ASV: Righteous lips are the delight of kings; And they love him that speaketh right.
DARBY: Righteous lips are the delight of kings, and they love him that speaketh aright.
BLB: Lips of righteousness [are] the delight of kings, and one speaking uprightly he loves.

ÅB: Rettferdige lepper er til velbehag for konger, og den som taler det som rett er, elsker de.
OTB: Rettferdige lepper er kongers glede, og de elsker dem som taler det som er rett.
B1930: Rettferdige leber er til velbehag for konger, og den som taler det som rett er, elsker de.

Proverbs 14:35
A king delights in a wise servant, but his anger falls on the shameful.
Read in context
Proverbs 22:11
He who loves a pure heart and gracious lips will have the king for a friend.
Read in context
Psalms 101:5–7
Whoever slanders his neighbor in secret, I will put to silence; the one with haughty eyes and a proud heart, I will not endure.
Read in context