Solomon
Proverbs 29:20ESV·traditional attribution

Do you see a man who is hasty in his words? There is more hope for a fool than for him.

Matthew Henry Presbyterian @wholebiblehenry

Solomon here shows that there is little hope of bringing a man to wisdom that is hasty either, 1. Through rashness and inconsideration: Seest thou a man that is hasty in his matters, that is of a light desultory wit, that seems to take a thing quickly, but takes it by the halves, gallops over a book or science, but takes no time to digest...

John Gill Reformed Baptist @doctorgill

Seest thou a man that is hasty in his words,.... Swift to speak either before God or men; that takes upon him to speak upon a subject, or return an answer to a question, before he has thoroughly thought of it, and well considered it, and digested what he should say; see Ecc 5:2; or "hasty in matters" (x); in his business; runs rashly and...

Jamieson-Fausset-Brown Reformed @jfbcommentary

(Compare Pro 21:5). hasty in . . . words?--implying self-conceit (Pro 26:12).