Bridges on Proverbs 28:12
Charles Bridges on Proverbs 28:12

12.  When righteous men do rejoice, there is great glory: but when the wicked rise, a man is hidden. {hidden: or, sought for}
“We are made” — said a righteous man — “as the filth of the earth, and are the offscouring of all things unto this day.”† Yet these are the men, who “bear up the pillars of the state.”† When therefore they rejoice — when they are raised to honor, — there is great glory.† The whole kingdom feels more or less the influence of this national blessing. Godliness is countenanced. Men are protected in the free exercise of their religion. “When Mordecai went out from the presence of the king in the king’s royal apparel, the city of Shushan rejoiced, and were glad. The Jews had light, and gladness, and joy, and honor; in every province a feast, and a good day.” (Esther 8:17.) The same result is seen in the experience of the Church. When “the Churches had rest” from the fiery trial, “they were edified and walked in the fear of the Lord, and in the comfort of the Holy Ghost.” (Acts 9:31.) And what glory so great, as the sunshine of the enjoyment of their God!
But when the wicked rise to honor, how is this glory eclipsed! The people of God are removed into corners, silenced, hidden. (Verse 28.) The light of upwards of an hundred prophets, and even Elijah himself, was hidden for awhile under the tyranny of Ahab.† And in every age the power of the wicked, especially under a despotic rule, hides much valuable influence. Yet it is hidden only to the eye of sense. For of those, who “wander about in sheep-skins and goat-skins, in deserts, and caves of the earth,” what greater glory could we give, than the divine inscription stamped upon them — “Of whom the world was not worthy”?†