Daniel 3:17-19

17If it is so, our God whom we serve is able to deliver us from the burning fiery furnace, and he will deliver us out of thy hand, O king. 18But if not, be it known to thee, O king, that we will not serve thy gods, nor worship the golden image which thou hast set up.

19Then was Nebuchadnezzar full of fury, and the form of his visage was changed against Shadrach, Meshach, and Abednego: therefore he spoke, and commanded that they should heat the furnace seven times more than it was heated before.1