What is the meaning of Revelation 16:14?

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

These are demonic spirits that perform signs and go out to all the kings of the earth, to assemble them for battle on the great day of God the Almighty.

Berean Standard Bible (BSB)

for they are spirits of demons, performing signs; which go forth to the kings of the whole inhabited earth, to gather them together for the war of that great day of God, the Almighty.

World English Bible (WEB)

For{G1063} they are{G1526}{(G5748)} the spirits{G4151} of devils{G1142}, working{G4160}{(G5723)} miracles{G4592}, which go forth{G1607}{(G5738)}{(G5625)}{G3739}{G1607}{(G5736)} unto{G1909} the kings{G935} of the earth{G1093} and{G2532} of the whole{G3650} world{G3625}, to gather{G4863}{(G5629)} them{G846} to{G1519} the battle{G4171} of that{G1565} great{G3173} day{G2250} of God{G2316} Almighty{G3841}.

Strong's King James

(14) Because they are ruach-spirits, evil ruach-spirits, doing signs, which go out upon the entire world's kings to assemble them into the battle, the great day of יהוה YAHWEH, The El-Shaddai.

The F.O.G*

[14] These were demonic spirits performing deceptive signs, sent to gather the world's rulers for battle against יהוה Almighty on the great day of His decisive victory.

The F.O.G Paraphrase

for they are spirits of demons, doing signs—which go forth unto the kings of the earth, and of the whole world, to bring them together to the battle of that great day of God the Almighty;—

Young's Literal Translation