'Multitude' in the Bible

After these things I looked, and behold, a great multitude, which no man could number, out of every nation and of all tribes, peoples, and languages, standing before the throne and before the Lamb, dressed in white robes, with palm branches in their hands.

After these things I heard something like a loud voice of a great multitude in heaven, saying, "Hallelujah! Salvation, power, and glory belong to our God:

I heard something like the voice of a great multitude, and like the voice of many waters, and like the voice of mighty thunders, saying, "Hallelujah! For the Lord our God, the Almighty, reigns!