Hebrews 1:7
Of the angels he says, "Who makes his angels winds, and his servants a flame of fire."
Psalm 104:4
He makes his messengers winds; his servants flames of fire.
2 Kings 2:11
It happened, as they still went on, and talked, that behold, a chariot of fire and horses of fire separated them; and Elijah went up by a whirlwind into heaven.
2 Kings 6:17
Elisha prayed, and said, "Yahweh, please open his eyes, that he may see." Yahweh opened the eyes of the young man; and he saw: and behold, the mountain was full of horses and chariots of fire around Elisha.
Isaiah 6:2
Above him stood the seraphim. Each one had six wings. With two he covered his face. With two he covered his feet. With two he flew.
Ezekiel 1:13-14
As for the likeness of the living creatures, their appearance was like burning coals of fire, like the appearance of torches: [the fire] went up and down among the living creatures; and the fire was bright, and out of the fire went forth lightning.
Daniel 7:10
A fiery stream issued and came forth from before him: thousands of thousands ministered to him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened.
Zechariah 6:5
The angel answered me, "These are the four winds of the sky, which go forth from standing before the Lord of all the earth.
Hebrews 1:14
Aren't they all serving spirits, sent out to do service for the sake of those who will inherit salvation?