Revelation 19:14

And the armies in heaven, clothed in fine linen, white and clean, followed Him on white horses.

1 Samuel 17:36  Your servant has killed both lion and bear; and this uncircumcised Philistine will be like one of them, seeing he has defied the armies of the living God.

Daniel 7:9  I watched till thrones were put in place, and the Ancient of Days was seated; His garment was white as snow, and the hair of His head was like pure wool.  His throne was a fiery flame, its wheels a burning fire;