Hebrews 1:11-14

They will perish, but You remain and continue permanently; they will all grow old and wear out like a garment. Like a mantle [thrown about one's self] You will roll them up, and they will be changed and replaced by others. But You remain the same, and Your years will never end nor come to failure. [Ps. 102:25-27.] Besides, to which of the angels has He ever said, Sit at My right hand [associated with Me in My royal dignity] till I make your enemies a stool for your feet? [Ps. 110:1.] Are not the angels all ministering spirits (servants) sent out in the service [of God for the assistance] of those who are to inherit salvation?