The “great crowd in heaven” referred to at Revelation 19:1, 6 is not the same as the “great crowd” of Revelation 7:9. The ones in heaven are not described as being “out of all nations” or as ascribing their salvation to the Lamb; they are angels. The expression “great crowd” is used in a variety of contexts in the Bible.—Mark 5:24; 6:34; 12:37.

What will those who go to heaven do there?

Rev. 20:6: “They will be priests of God and of the Christ, and will rule as kings with him for the thousand years.” (Also Daniel 7:27)

1 Cor. 6:2: “Do you not know that the holy ones will judge the world?”

Rev. 5:10: “You made them to be a kingdom and priests to our God, and they are to rule as kings over [“on,” RS, KJ, Dy; “over,” AT, Da, Kx, CC] the earth.” (The same Greek word and grammatical structure is found at Revelation 11:6. There RS, KJ, Dy, etc., all render it “over.”)

Who selects the ones who will go to heaven?

2 Thess. 2:13, 14: “We are obligated to thank God always for you, brothers loved by Jehovah, because God selected you from the beginning for salvation by sanctifying you with spirit and by your faith in the truth. To this very destiny he called you through the good news we declare, for the purpose of acquiring the glory of our Lord Jesus Christ.”

Rom. 9:6, 16: “Not all who spring from Israel are really ‘Israel.’ . . . It depends, not upon the one wishing nor upon the one running, but upon God, who has mercy.”