Revelation 16:5

And I heard the angel of the waters saying, Righteous art thou, who art, and who wast; who art perfect; because thou hast judged these:

Revelation 1:4

John, to the seven congregation which are in Asia; favor and peace be with you, from him who is, and who was, and who is to come; and from the seven spirits which are before his throne;

Revelation 11:17

saying, We give thanks to thee, O Lord God Almighty, who art, and who wast, because thou hast taken by great power, and hast commenced thy reign.

Revelation 1:8

I am the Alpha and the Omega, says the Lord, who is, and who was, and who is to come, the Almighty.

Revelation 4:8

And the four living creatures had, each of them, six wings round about; and within they were full of eyes: and they rest not, day or night, saying, Holy, holy, holy, Lord God Almighty, who wast, and art, and art to come.

Revelation 15:3-4

And they sang the song of Moses, the servant of God, and the song of the Lamb; saying, Great and wonderful are thy works, O Lord God Almighty; righteous and true are thy ways, O King of Saints.

Revelation 16:4

And the third angel poured out his vial upon the rivers, and on the fountains of water; and they became blood.

Revelation 16:7

And I heard a voice from the altar, saying, Yes, O Lord God Almighty, true and righteous are thy judgments.

Revelation 19:2

for his judgments are true and righteous; for he has judged the great harlot, who corrupted the earth with her fornication; and he has avenged the blood of his servants shed by her hand.

Treasury of Scripture Knowledge

Summary

And I heard the angel of the waters say, Thou art righteous, O Lord, which art, and wast, and shalt be, because thou hast judged thus.

The angel

Bible References

The angel

Revelation 16:4
And the third angel poured out his vial upon the rivers, and on the fountains of water; and they became blood.

Thou art

Revelation 16:7
And I heard a voice from the altar, saying, Yes, O Lord God Almighty, true and righteous are thy judgments.
Revelation 15:3
And they sang the song of Moses, the servant of God, and the song of the Lamb; saying, Great and wonderful are thy works, O Lord God Almighty; righteous and true are thy ways, O King of Saints.
Revelation 19:2
for his judgments are true and righteous; for he has judged the great harlot, who corrupted the earth with her fornication; and he has avenged the blood of his servants shed by her hand.

Which art

Revelation 1:4
John, to the seven congregation which are in Asia; favor and peace be with you, from him who is, and who was, and who is to come; and from the seven spirits which are before his throne;
Revelation 4:8
And the four living creatures had, each of them, six wings round about; and within they were full of eyes: and they rest not, day or night, saying, Holy, holy, holy, Lord God Almighty, who wast, and art, and art to come.
Revelation 11:17
saying, We give thanks to thee, O Lord God Almighty, who art, and who wast, because thou hast taken by great power, and hast commenced thy reign.