After this I looked, and there before me was a great multitude that no one could count, from every nation, tribe, people and language, standing before the throne and before the Lamb. They were wearing white robes and were holding palm branches in their hands. 10 And they cried out in a loud voice:
“Salvation belongs to our God,
who sits on the throne,
and to the Lamb.” (Revelation 7:9-10)
God will seal all his “servants” (i.e) true believers, both Jew and Gentile at the beginning of the Great tribulation (Revelation 7:1-3). This will be to protect them from His wrath. Nevertheless, even protected from His wrath, they will still have to die for Christ’s name. But God will bless them for this. A great multitude of them, from “every nation tribe, people and language” we have the honor of being coming to God’s throne room as martyrs. They will have “white robes” which represent their sinlessness, since God has forgiven them of their sins, and they will praise God, waving palm branches. They will praise God the Father and the Lamb for saving them.