שִׂפְתֵ֣י צַ֭דִּיק יֵדְע֣וּן רָצ֑וֹן וּפִ֥י רְ֝שָׁעִ֗ים תַּהְפֻּכֽוֹת׃
The lips of the righteous know what is acceptable; But the mouth of the wicked is all frowardness.
Rashi on Proverbs
the lips of a righteous man know how to please They know how to please and placate his Creator, and they know how to please the people and how to make peace among them.