Psalms 103:21

“Bless ye the Lord, all ye his hosts - His armies; the vast multitudes of holy beings, arranged and marshalled as hosts for battle, in all parts of the universe. Compare the notes at Isaiah 1:9; notes at Ephesians 1:21. Ye ministers of his - The same beings referred to by the word “hosts,” and all others who may be employed in executing his will. The “hosts” or armies of the Lord are thus marshalled that they may “do his pleasure,” or that they may execute his purposes. That do his pleasure - What is agreeable to him; that is, who perform his will. Employed in his service, and appointed to execute his will, they are called on to bless his name. The fact of being employed in his service is a…”

“His hosts - A title often given to the angels, in regard of their vast numbers, mighty power, unanimous concurrence, and exquisite order. Ministers - This Hebrew word is commonly used of the highest and most honourable sort of servants, Next: Psalms Chapter 104”

“all ye his hosts: Psa 33:6; Gen 32:2; Jos 5:14; Kg1 22:19; Ch2 18:18; Luk 2:13 ministers: Psa 68:17, Psa 104:4; Neh 9:6; Dan 7:9, Dan 7:10; Mat 13:41, Mat 24:30, Mat 24:31; Th2 1:7, Th2 1:8; Heb 1:6, Heb 1:7, Heb 1:14; Rev 22:8, Rev 22:9 Psalms 103:22”