Revelation 15:1-4 Revised Standard Version (RSV)
The Angels with the Seven Last Plagues
15 Then I saw another portent in heaven, great and wonderful, seven angels with seven plagues, which are the last, for with them the wrath of God is ended.
2 And I saw what appeared to be a sea of glass mingled with fire, and those who had conquered the beast and its image and the number of its name, standing beside the sea of glass with harps of God in their hands. 3 And they sing the song of Moses, the servant of God, and the song of the Lamb, saying,
“Great and wonderful are thy deeds,