Solomon
Proverbs 17:8ESV·traditional attribution

A bribe is like a magic stone in the eyes of the one who gives it; wherever he turns he prospers.

Matthew Henry Presbyterian @wholebiblehenry

The design of this observation is to show, 1. That those who have money in their hand think they can do any thing with it. Rich men value a little money as if it were a precious stone, and value themselves on it as if it gave them not only ornament, but power, and every one were bound to be at their beck, even justice itself.

John Gill Reformed Baptist @doctorgill

A gift is as a precious stone in the eyes of him that hath it,.... Or "is a stone of grace" (h), the note of similitude being wanting. It is an ornament of grace, adorns the person that wears it, makes him look lovely and amiable; is very grateful and desirable in itself, attracts and dazzles the eyes, and fills the mind with pleasure; so...

Jamieson-Fausset-Brown Reformed @jfbcommentary

One so corrupt as to take a bribe evinces his high estimate of it by subjection to its influence (Pro 18:16; Pro 19:6).