He answered and said, Lo, I see four men loose, walking in the midst of the fire, and they have no hurt; and the form of the fourth is like the Son of God. Daniel 3:25
How did that heathen king know what the Son of God was like? The Hebrew captives filling positions of trust in Babylon had in life and character represented before him the truth. When asked for a reason of their faith, they had given it without hesitation. Plainly and simply they had presented the principles of righteousness, thus teaching those around them of the God whom they worshiped. They had told of Christ, the Redeemer to come; and in the form of the fourth in the midst of the fire the king recognized the Son of God.
And now, his own greatness and dignity forgotten, Nebuchadnezzar descended from his throne and, going to the mouth of the furnace, cried out, "Ye servants of the most high God, come forth, and come hither."
The Shadrach, Meshach, and Abednego came forth before the vast multitude, showing themselves unhurt. The presence of their Saviour had guarded them from harm, and only their fetters had been burned." And the princes, governors, and captains, and the king's counselors, being gathered together, saw these men, upon whose bodies the fire had no power, nor was an hair of their head singed, neither were their coats changed, nor the smell of fire had passed on them." (Prophets and Kings, 509)
Reflection: After this manifestation of the true God, we don't hear of the golden image ever again. What power!