3:19 Then was Nebuchadnezzar full of fury, and the form of his visage was changed against Shadrach, Meshach, and Abednego: [therefore] he spake, and commanded that they should heat the furnace one seven {i} times more than it was wont to be heated.
(i) This declares that the more that tyrants rage, and the more crafty they show themselves in inventing strange and cruel punishments, the more is God glorified by his servants, to whom he gives patience and constancy to abide the cruelty of their punishment. For either he delvers them from death, or else for this life gives them better.
3:19-27 Let Nebuchadnezzar heat his furnace as hot as he can, a few minutes will finish the torment of those cast into it; but hell-fire tortures, and yet does not kill. Those who worshipped the beast and his image, have no rest, no pause, no moment free from pain, Re 14:10,11. Now was fulfilled in the letter that great promise, Isa 43:2, When thou walkest through the fire, thou shalt not be burned. Leaving it to that God who preserved them in the fire, to bring them out, they walked up and down in the midst, supported and encouraged by the presence of the Son of God. Those who suffer for Christ, have his presence in their sufferings, even in the fiery furnace, and in the valley of the shadow of death. Nebuchadnezzar owns them for servants of the most high God; a God able to deliver them out of his hand. It is our God only is the consuming fire, Heb 12:29. Could we but see into the eternal world, we should behold the persecuted believer safe from the malice of his foes, while they are exposed to the wrath of God, and tormented in unquenchable fires.