Parallel
Revelation 11:17
Nestle 1904 Greek New Testament · Berean Standard Bible
λέγοντες Εὐχαριστοῦμέν σοι Κύριε ὁ Θεός ὁ Παντοκράτωρ ὁ ὢν καὶ ὁ ἦν ὅτι εἴληφας τὴν δύναμίν σου τὴν μεγάλην καὶ ἐβασίλευσας
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.