TSK
Treasury of Scripture Knowledge references in ASV.
And Elisha prayed, and said, Jehovah, I pray thee, open his eyes, that he may see. And Jehovah 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.
Above him stood the seraphim: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.
A fiery stream issued and came forth from before him: thousands of thousands ministered unto him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened.
Are they not all ministering spirits, sent forth to do service for the sake of them that shall inherit salvation?