John Gill Commentary Proverbs 20:8

"A king that sitteth on the throne of judgment Scattereth away all evil with his eyes." — Proverbs 20:8 (ASV)

A king that sits in the throne of judgment That executes judgment himself, as David and Solomon did; who ascends the throne, and sits personally there, and hears and tries causes himself, and not by his servants. Scatters away all evil with his eyes; all evil men, as the Targum; everyone that is evil, as Aben Ezra. He will easily and quickly discern who is evil or who has a bad cause before him, and will pass sentence on him, and drive him away from him with shame and disgrace, to receive deserved punishment; or he will terrify persons from coming before him with false witness against their neighbor, or with a wrong cause.

This may be applied to Christ, the King of kings, and Judge of all. His eyes are as a flame of fire; he will clearly see into all hearts and actions when he sits on his throne of judgment. He shall pass the righteous and definitive sentence and shall drive the wicked into hell, into everlasting punishment.