saying: βWe give thanks to You, O Lord God Almighty, the One who is and who was, because You have taken Your great power and have begun to reign.
KJV
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.
ASV
saying, We give thee thanks, O Lord God, the Almighty, who art and who wast; because thou hast taken thy great power, and didst reign.