Daniel 3:19
Then was Nebuchadnezzar full of fury, and the form of his visage was changed against Shadrach, Meshach, and Abednego: therefore he spake, and commanded that they should heat the furnace one seven times more than it was wont to be heated.
Hosea 7:4
They are all adulterers, as an oven heated by the baker, who ceaseth from raising after he hath kneaded the dough, until it be leavened.