Nebuchadnezzar called the three Hebrwes to come out of the fiery furnace because

In the book of Daniel in the Bible, Nebuchadnezzar, the king of Babylon, had ordered three Hebrew men - Shadrach, Meshach, and Abednego - to be thrown into a fiery furnace because they refused to worship a golden image he had made. However, when he looked into the furnace, he saw not three, but four men walking around inside, unharmed by the flames. The fourth man appeared to be like a son of the gods. So, Nebuchadnezzar called the three Hebrews to come out of the fiery furnace because he was astonished to see four men loose and unhurt, and he wanted to witness this miracle himself.