Bridges on Proverbs 20:26
Charles Bridges on Proverbs 20:26

26.  A wise king scattereth the wicked, and bringeth the wheel over them.
Solomon, as a wise king, was constantly eyeing his own responsibilities. His standard was not to commit wickedness himself,† nor to allow it in his people; to scatter, not to encourage, the wicked. As the husbandman’s wheel, brought over the grain, cut the straw, and separated the chaff;† his sifting administration of justice brought the wheel of vengeance on the wicked, and scattered them as worthless chaff (Psalm 1:4), or crushed them in ruin. (1 Kings 2:25-46.) In the same spirit did his father David destroy them, when they boldly claimed his countenance.† Godly Asa removed wickedness from the high place nearest his own throne and heart.† Amaziah justly punished it with death.† Nehemiah — that true reformer — rebuked it even in the family of the high-priest.† Our own Alfred appeared to maintain this standard as a witness for God in an age of darkness. But it is the King of kings alone, that can make this separation complete. Often does he sift his church by trial, for her greater purity and complete preservation. (Amos 9:9.) But what will it be, when he shall come “with his fan in his hand, and shall throughly purge his floor!” (Matthew 3:12.) What a scattering of chaff will there be! Not an atom will go into the garner. Not a grain of wheat will be cast away. Oh my soul! what wilt thou be found at this great sifting day! “Who may abide the day of his coming? And who shall stand when he appeareth?” (Malachi 3:2.)