Da 3:24Then Nebuchadnezzar the king was astonied, and rose up in haste, and spake, and said unto his counsellors, Did not we cast three men bound into the midst of the fire? They answered and said unto the king, True, O king.Da 3:25He 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. While considering motifs for the Bible cover my son wants me to make, I thought about one showing Shadrach, Meshach and Abednego in the fiery furnace with the Son of God in the their midst. That led to this question: How did Nubuchadnezzer, a non believer, recognize that the fourth was the Son of God? Why not an angel, ghost or other apparation?