Parallel
Revelation 11:17
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Saying, We give thee thanks, O Lord God Almighty, which art, and wast, and art to come; because thou hast taken to thee thy great power, and hast reigned.
saying: “We give thanks to You, O Lord God Almighty, the One who is and who was (note: TR includes and who is to come.), because You have taken Your great power and have begun to reign.