Bridges on Proverbs 20:8
Charles Bridges on Proverbs 20:8

8.  A king that sitteth in the throne of judgment scattereth away all evil with his eyes.
This is the picture of a godly king, such as the wise man’s father described and exemplified; “just, ruling in the fear of God;”† making it his great care and business to execute judgment. In those days he sat himself on the throne of judgment, and decided the law.† And such might be conceived to be his influence, that the wicked dared not come and sin in his presence. “Will he force the queen also before me? ” (Esther 7:8) — was the indignant exclamation of a sovereign, on feeling not only his own rights, but the reverence for royalty grossly outraged. David, as a man of God, and a sovereign of his people, could not endure the wicked in his presence. (Psalm 101:3-8.)
At present, “God standeth in the congregation of princes” (Ib. 82:1), observing the manner, in which they execute the power delegated to them; but hereafter he shall sit as “a judge” even of them, who, by reason of that delegated power, are styled “gods.” The care then of the Magistrate, when he goeth up to the judgment-seat, will be to put on righteousness as a glorious and beautiful robe, and to render his tribunal a fit emblem of that eternal “throne,” of which “justice and judgment are the habitation.”† And always in proportion as the ruler realizes his solemn responsibility, evil will be made to flee, and scattered away from him.†
But what is to be ever standing before the Great King, who scattereth away all evil with his eyes? “Thou art of purer eyes than to behold evil, and cannot look on iniquity. The foolish shall not stand in thy sight. All things are naked and opened unto the eyes of him with whom we have to do.” (Hebrews 1:13. Psalm 5:5. Hebrews 4:13.) May the High Priest ever stand between the sinner and the Holy God, that, while we walk in reverence, we “may not be afraid with any amazement”!