Hebrews 1:12 (KJV)

And of the angels he saith, Who maketh his angels spirits, and his ministers a flame of fire.

But unto the Son he saith, Thy throne, O God, is for ever and ever: a sceptre of righteousness is the sceptre of thy kingdom.

Thou hast loved righteousness, and hated iniquity; therefore God, even thy God, hath anointed thee with the oil of gladness above thy fellows.

And, Thou, Lord, in the beginning hast laid the foundation of the earth; and the heavens are the works of thine hands:

They shall perish; but thou remainest; and they all shall wax old as doth a garment;

But to which of the angels said he at any time, Sit on my right hand, until I make thine enemies thy footstool?

Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?