Refusing to worship the golden image in a foreign country, the three Hebrew guys knew King Nebuchadnezzar would throw them in the fiery furnace.
Daniel 3:17 If it be so, our God whom we serve is able to deliver us from the burning fiery furnace, and he will deliver us out of thine hand, O king.
18. But if not, be it known unto thee, O king, that we will not serve thy gods nor worship the golden image which thou hast set up.
As he watched, the shocked king wanted to know who the fourth man was, walking with them in the flames.
It was Jesus, and nobody got burned, not even a hair singed. He was delivering His children just like he will deliver you if you're in the fire, up a creek, at the end of your rope or worried.
Jesus is walking in your fire.