The shield of his mighty men is made red, the valiant men [are] in scarlet: the chariots [shall be] with flaming torches in the day of his preparation, and the fir trees shall be terribly shaken. (2:3)

--Revelation--

And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads. (12:3)