25 "Look!" Nebuchadnezzar shouted. "I see four men, unbound, walking around in the fire unharmed! And the fourth looks like a god !" 26 Then Nebuchadnezzar came as close as he could to the door of the flaming furnace and shouted: "Shadrach, Meshach, and Abednego, servants of the Most High God, come out! Come here!" So Shadrach, Meshach, and Abednego stepped out of the fire. 27 Then the high officers, officials, governors, and advisers crowded around them and saw that the fire had not touched them. Not a hair on their heads was singed, and their clothing was not scorched. They didn't even smell of smoke!

28 Then Nebuchadnezzar said, "Praise to the God of Shadrach, Meshach, and Abednego! He sent his angel to rescue his servants who trusted in him. They defied the king's command and were willing to die rather than serve or worship any god except their own God. 29 Therefore, I make this decree: If any people, whatever their race or nation or language, speak a word against the God of Shadrach, Meshach, and Abednego, they will be torn limb from limb, and their houses will be turned into heaps of rubble. There is no other god who can rescue like this!"

Matthew Henry's Commentary on Daniel 3:25-29

Commentary on Daniel 3:19-27

(Read Daniel 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, Hebrews 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.

Commentary on Daniel 3:28-30

(Read Daniel 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.