Hebrews 1:7
And of the angels he says, Who makes his angels spirits, and his ministers a flame of fire.
Psalm 104:4
Who makes his angels spirits; his ministers a flaming fire:
2 Kings 2:11
And it came to pass, as they still went on, and talked, that, behold, there appeared a chariot of fire, and horses of fire, and separated them both; and Elijah went up by a whirlwind into heaven.
2 Kings 6:17
And Elisha prayed, and said, LORD, I pray you, open his eyes, that he may see. And the LORD opened the eyes of the young man; and he saw: and, behold, the mountain was full of horses and chariots of fire round about Elisha.
Isaiah 6:2
Above it stood the seraphim: each one had six wings; with two he covered his face, and with two he covered his feet, and with two he did fly.
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: they went back and forth 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: thousand thousands ministered unto him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened.
Zechariah 6:5
And the angel answered and said unto me, These are the four spirits of heaven, which go forth from standing before the Lord of all the earth.
Hebrews 1:14
Are they not all ministering spirits, sent forth to minister to them who shall be heirs of salvation?