Commentaries
3:28-30 What God did for these his servants, would help to keep the Jews to their religion while in captivity, and to cure them of idolatry. The miracle brought deep convictions on Nebuchadnezzar. But no abiding change then took place in his conduct. He who preserved these pious Jews in the fiery furnace, is able to uphold us in the hour of temptation, and to keep us from falling into sin.
29. This decree promulgated throughout the vast empire of Nebuchadnezzar must have tended much to keep the Jews from idolatry in the captivity and thenceforth (Ps 76:10).