Revelation 11:17

saying: “We 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.

Note TR includes and who is to come.

BSB · 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.
KJV · King James Version
saying: “We give you thanks, Lord God, the Almighty, the one who is and who was, because you have taken your great power and reigned.

Note TR adds “and who is coming”

WEB · World English Bible
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.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

We give
Revelation 4:9; Daniel 2:23; Daniel 6:10; Matthew 11:25; Luke 10:21; John 11:41; 2 Corinthians 2:14; 2 Corinthians 9:15; 1 Timothy 1:12
Lord God Almighty
Revelation 1:8; Revelation 4:8; Revelation 15:3; Revelation 16:7, 14; Genesis 17:1
which
Revelation 1:4, 8; Revelation 16:5
thou hast
Revelation 11:15; Revelation 19:6, 11–21; Revelation 20:1–3; Psalm 21:13; Psalm 57:11; Psalm 64:9, 10; Psalm 98:1–3; Psalm 102:13; Isaiah 51:9–11; Isaiah 52:10