Thought from Today's Old Testament Passage:
No real harm befalls the godly, but the wicked have their fill of trouble. Proverbs 12:21
Note, 1. Piety is a sure protection. If men be sincerely righteous, the righteous God has engaged that no evil shall happen to them. He will, by the power of his grace in them, that principle of justice, keep them from the evil of sin; so that, though they be tempted, yet they shall not be overcome by the temptation, and though they may come into trouble, into many troubles, yet to them those troubles shall have no evil in them, whatever they have to others (Ps. 91:10), for they shall be overruled to work for their good. 2. Wickedness is as sure a destruction. Those that live in contempt of God and man, that are set on mischief, with mischief they shall be filled. They shall be more mischievous, shall be filled with all unrighteousness, Rom. 1:29. Or they shall be made miserable with the mischiefs that shall come upon them. Those that delight in mischief shall have enough of it. Some read the whole verse thus, There shall no evil happen to the just, though the wicked be filled with mischief and spite against them. They shall be safe under the protection of Heaven, though hell itself break loose upon them.
Matthew Henry, Matthew Henry's Commentary on the Bible (Peabody MA: Hendrickson Publishers), 1997