Revelation 7:9-11

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. And they cried out in a loud voice:
“Salvation belongs to our God,
who sits on the throne,
and to the Lamb.”
All the angels were standing around the throne and around the elders and the four living creatures. They fell down on their faces before the throne and worshiped God