By this multitude most understand the church. Some understand the Jews as well as the Gentiles, supposing that they shall be before this time converted and added to the church. Others think their conversion is the marriage spoken of in the next verse. The saints do not rejoice in the ruin of their adversaries, but in the glory of God advanced by it, and as his kingdom is by it promoted.
Related Commentaries of Revelation 19:6
Revelation 19:6
6 And I heard as it were the voice of a great multitude, and as the voice of many waters, and as the voice of mighty thunderings, saying, Alleluia: for the Lord God omnipotent reigneth.