Revelation 15:1-2

International Standard Version

The Vision of Seven Angels with Seven Plagues

15 I saw another sign in heaven. It was both spectacular and amazing. There were seven angels with the seven last plagues, with which God’s wrath is completed.

The Vision of the Sea of Glass

² Then I saw what looked like a sea of glass mixed with fire. Those who had conquered the beast, its image, and the number of its name were standing on the sea of glass holding God’s harps in their hands.