Albert Barnes Commentary Revelation 7:10

"and they cry with a great voice, saying, Salvation unto our God who sitteth on the throne, and unto the Lamb." — Revelation 7:10 (ASV)

And cried with a loud voice. Compare Zechariah 4:7. This expresses the greatness of their joy and the ardor and earnestness of their praise.

Salvation to our God. The word translated salvation—soteria—properly means safety, deliverance, preservation; then welfare or prosperity; then victory; and then, in a Christian sense, deliverance from punishment and admission to eternal life.

Here the idea seems to be that their deliverance from sin, danger, persecution, and death was to be ascribed solely to God.

This does not mean, as the words might seem to imply, that they desired salvation for God; but the sense is, that their salvation was to be attributed entirely to Him. This will undoubtedly be the song of the released forever, and all who reach the heavenly world will feel that they owe their deliverance from eternal death, and their admission to glory, wholly to Him.

Professor Robinson (Lexicon) renders the word here victory. The clear meaning is, that whatever is included in the word salvation will be due to God alone—the deliverance from sin, danger, and death; the triumph over every foe; the resurrection from the grave; the rescue from eternal burnings; the admission to a holy heaven—victory in all that word implies will be due to God.

Who sits upon the throne (see the commentary on Revelation 4:2).

And to the Lamb (see the commentary on Revelation 5:6).

God the Father, and He who is the Lamb of God, alike claim the honor of salvation. It is noteworthy here, that the redeemed ascribe their salvation to the Lamb as well as to Him who is on the throne. Could they do this if He who is referred to as the "Lamb" were a mere man? Could they if He were an angel? Could they if He were not equal with the Father? Do those who are in heaven worship a creature? Will they unite a created being with the Anointed One in acts of solemn adoration and praise?