Luke 4:10

for it is written, "He will give his angels charge concerning thee, to guard thee;

And the Devil said to him, If thou art the Son of God, command this stone that it become a loaf of bread.

And Jesus answering said to him, It is written, "Thou shalt worship the Lord thy God, and him only shalt thou serve."

And no wonder; for even Satan transformeth himself into an angel of light.

Are they not all ministering spirits, sent forth to minister for the sake of those who are to inherit salvation?

Treasury of Scripture Knowledge

For it is written, He shall give his angels charge over thee, to keep thee:

Are they not all ministering spirits, sent forth to minister for the sake of those who are to inherit salvation?