What is the meaning of Revelation 16:5?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

And I heard the angel of the waters say: “Righteous are You, O Holy One, who is and was, because You have brought these judgments.

Berean Standard Bible (BSB)

I heard the angel of the waters saying, “You are righteous, who are and who were, you Holy One, because you have judged these things.

World English Bible (WEB)

And{G2532} I heard{G191}{(G5656)} the angel{G32} of the waters{G5204} say{G3004}{(G5723)}, Thou art{G1488}{(G5748)} righteous{G1342}, O Lord{G2962}, which{G3588} art{G5607}{(G5752)}{(G5625)}{G3801}, and{G2532} wast{G2258}{(G5713)}{(G5625)}{G3801}, and{G2532} shalt be{G3741}{(G5706)}{(G5625)}{G3801}, because{G3754} thou hast judged{G2919}{(G5656)} thus{G5023}.

Strong's King James

(5) I heard the angel of the waters, saying, "Righteous are You, who is and who was, The Holy One because You judged this!

The F.O.G*

[5] I heard the messenger of the waters declare: "You are absolutely just in these decisions, O Holy One, who exists now just as You have eternally existed!

The F.O.G Paraphrase

and I heard the messenger of the waters, saying, ‘righteous, O Lord, art Thou, who art, and who wast, and who shalt be, because these things Thou didst judge,

Young's Literal Translation