The King of Babylon gazes into a blazing furnace and witnesses the impossible. Instead of finding the condemned men burned to death, he sees them moving freely through the flames, joined by a mysterious fourth figure. The men are completely freed from their bindings. They walk through the roaring fire with ease, as if taking a casual stroll down the street, without suffering the slightest harm or injury [רש״י, אבן עזרא, ביאור שטיינזלץ, מצודת דוד].
The king's shock deepens when he takes note of the fourth individual, whose appearance he describes as resembling an angel. This description reflects the entity's status as an intimate member of God's heavenly household [מצודת ציון]. The specific identity of this angel highlights the true magnitude of the miracle. Tradition identifies this figure as the angel Gabriel. When the men were first thrown into the flames, Michael, the angel appointed over water, asked to save them. However, Gabriel argued that God's greatness would be far more evident if he, the angel appointed over fire, performed the rescue. Gabriel was granted the mission, cooling the inside of the furnace while allowing the outside to continue burning fiercely [חומת אנך, אלשיך].
Nebuchadnezzar clearly recognized this being as an angel of God because of a fateful encounter from his past. Years earlier, Nebuchadnezzar was present in the camp of the Assyrian King Sennacherib during the siege of Jerusalem. He was one of the very few survivors when Gabriel struck and burned the entire Assyrian army. Divine providence spared Nebuchadnezzar's life during that historical event for this exact moment, ensuring he would recognize the angel in the furnace and declare the miracle to all the nations [רש״י, אלשיך].
This history adds a profound layer to the king's astonishment. He knew Gabriel specifically as the minister of fire and a force of burning destruction. His absolute amazement stemmed not only from seeing men survive the flames, but from watching them stand beside the master of fire himself without suffering any damage. This unique connection to fire also explains why Nebuchadnezzar referred to the angel as a son of the divine. Because God is described in the Torah as a consuming fire, the angel in charge of fire shares this divine characteristic, much like a son resembling his father. Ultimately, the king's specific declaration of what he is seeing indicates that the miraculous vision of the angel was revealed exclusively to Nebuchadnezzar, while the others standing around him saw nothing of the heavenly visitor [אלשיך].