Hebrews 1:7
and unto the messengers, indeed, He saith, 'Who is making His messengers spirits, and His ministers a flame of fire;'
Psalm 104:4
Making His messengers -- the winds, His ministers -- the flaming fire.
2 Kings 2:11
And it cometh to pass, they are going, going on and speaking, and lo, a chariot of fire, and horses of fire, and they separate between them both, and Elijah goeth up in a whirlwind, to the heavens.
2 Kings 6:17
And Elisha prayeth, and saith, 'Jehovah, open, I pray Thee, his eyes, and he doth see;' and Jehovah openeth the eyes of the young man, and he seeth, and lo, the hill is full of horses and chariots of fire, round about Elisha.
Isaiah 6:2
Seraphs are standing above it: six wings hath each one; with two each covereth its face, and with two each covereth its feet, and with two each flieth.
Ezekiel 1:13-14
As to the likeness of the living creatures, their appearances are as coals of fire -- burning as the appearance of lamps; it is going up and down between the living creatures, and brightness is to the fire, and out of the fire is going forth lightning.
Daniel 7:10
A flood of fire is proceeding and coming forth from before Him, a thousand thousands do serve Him, and a myriad of myriads before Him do rise up, the Judge is seated, and the books have been opened.
Zechariah 6:5
And the messenger answereth and saith unto me, 'These are four spirits of the heavens coming forth from presenting themselves before the Lord of the whole earth.
Hebrews 1:14
are they not all spirits of service -- for ministration being sent forth because of those about to inherit salvation?