Revelation 19:6 (KJV) 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. 

The voices of the saints in heaven give praise to the Lord God, giving glory to His Almighty power. The Antichrist and His minions would be defeated with impending Christ’s return – Revelation 19:7-8 (KJV) Let us be glad and rejoice, and give honour to him: for the marriage of the Lamb is come, and his wife hath made herself ready. 8 And to her was granted that she should be arrayed in fine linen, clean and white: for the fine linen is the righteousness of saints. 

The purposes of God cannot be thwarted and He rules over all. He is the Lord indeed. We are reminded of the scene at Mount Sinai at the giving of the Law. Here is the judgment according to the Law.

The saints in heaven are a great multitude in glory singing praise to the Lord God who truly reigns overall! Amen.