Revelation 7:9-10

After this I looked and a vast host appeared which no one could count, [gathered out] of every nation, from all tribes and peoples and languages. These stood before the throne and before the Lamb; they were attired in white robes, with palm branches in their hands. In loud voice they cried, saying, [Our] salvation is due to our God, Who is seated on the throne, and to the Lamb [to Them we owe our deliverance]!