לֵ֣ב צַ֭דִּיק יֶהְגֶּ֣ה לַעֲנ֑וֹת וּפִ֥י רְ֝שָׁעִ֗ים יַבִּ֥יעַ רָעֽוֹת׃
El corazón del justo piensa para responder: Mas la boca de los impíos derrama malas cosas.
Rashi on Proverbs
The heart of a righteous man thinks to answer He will think and understand what to answer before replying.