Ezekiel 1:4

And I looked, and, behold, a whirlwind came out of the north, an emblem of God's mighty judgments, a great cloud, and a fire infolding itself, literally, "taking itself within itself," which does not merely mean, formed into a ball or lump of fire, but at the same time flashing as if there was a continual kindling of flame within time fiery mass forming the center of the cloud, and a brightness was about it, so that it glowed like gold being refined in the assayer's furnace, and out of the midst thereof as the color of amber, metal glowing in the melting-pot, out of the midst of the fire, as though the heart of it were made of polished brass.