Daniel 3:27

And the princes, governors, and captains, the representative rulers of his entire empire, and the king's counselors, the members of his own privy council, being gathered together, saw these men, upon whose bodies the fire had no power, having had not the slightest effect upon them, nor was an hair of their head singed, this being ordinarily the first result of fire, neither were their coats changed, their undergarments touched by fire, nor the smell of fire had passed on them, in other words, one could not even notice that they had been anywhere near fire.