7:9?

Who are the "Great Multitude" in Revelation 7:9?

Who are the "Great Multitude" in Revelation 7:9?

NIV – Revelation 7:9: After this I looked, and there before me was a
great multitude that no one could count

There is a not complete answer in Revelation 7:14

These are they who have come out of the great tribulation; they have
washed …