Revelation 21:3

Καὶ ἤκουσα φωνῆς μεγάλης ἐκ τοῦ οὐρανοῦ, λεγούσης, Ἰδού, ἡ σκηνὴ τοῦ Θεοῦ μετὰ τῶν ἀνθρώπων, καὶ σκηνώσει μετ᾽ αὐτῶν, καὶ αὐτοὶ λαὸς αὐτοῦ ἔσονται, καὶ αὐτὸς ὁ Θεὸς ἔσται μετ᾽ αὐτῶν·

RBT Greek Interlinear:

Strongs 2532; Kai; Καὶ; And; Conj

Strongs 191; ēkousa; ἤκουσα; I heard; V-AIA-1S

Strongs 5456; phōnēs; φωνῆς; a voice; N-GFS

Strongs 3173; megalēs; μεγάλης; mega; Adj-GFS

Strongs 1537; ek; ἐκ; from out; Prep

Strongs 3588; tou; τοῦ; the; Art-GMS

Strongs 2362; thronou; θρόνου; throne; N-GMS

Strongs 3004; legousēs; λεγούσης; she who is saying; V-PPA-GFS

Strongs 2400; Idou; Ἰδοὺ; Behold; V-AMA-2S

Strongs 3588; hē; ἡ; the; Art-NFS

Strongs 4633; skēnē; σκηνὴ; tabernacle; N-NFS

Strongs 3588; tou; τοῦ; the; Art-GMS

Strongs 2316; Theou; Θεοῦ; God; N-GMS

Strongs 3326; meta; μετὰ; in company with; Prep

Strongs 3588; tōn; τῶν; the; Art-GMP

Strongs 444; anthrōpōn; ἀνθρώπων; men; N-GMP

Strongs 2532; kai; καὶ; and; Conj

Strongs 4637; skēnōsei; σκηνώσει; will tabernacle; V-FIA-3S

Strongs 3326; met’; μετ’; in company with; Prep

Strongs 846; autōn; αὐτῶν; of themselves; PPro-GM3P

Strongs 2532; kai; καὶ; and; Conj

Strongs 846; autoi; αὐτοὶ; themselves; PPro-NM3P

Strongs 2992; laoi; λαοὶ; peoples; N-NMP

Strongs 846; autou; αὐτοῦ; himself; PPro-GM3S

Strongs 1510; esontai; ἔσονται; will be; V-FIM-3P

Strongs 2532; kai; καὶ; and; Conj

Strongs 846; autos; αὐτὸς; he; PPro-NM3S

Strongs 3588; ho; ὁ; the; Art-NMS

Strongs 2316; Theos; Θεὸς; God; N-NMS

Strongs 3326; met’; μετ’; in company with; Prep

Strongs 846; autōn; αὐτῶν; of themselves; PPro-GM3P

Strongs 1510; estai; ἔσται; will be; V-FIM-3S

Strongs 846; autōn; [αὐτῶν; [as] their; PPro-GM3P

Strongs 2316; theos; θεός]; God; N-NMS

RBT Translation:

She Speaks

And I heard a mega voice from out of the Throne, she who is saying, "Behold! the Tent of the God in company with the Men! And she will tent in company with themselves! And they themselves will be peoples of himself, and himself the God will be in company with themselves!²⁷

LITV Translation:
And I heard a great voice out of Heaven, saying, Behold, the tabernacle of God with men! And He will tabernacle with them, and they will be His people, and God Himself will be with them as their God.

ESV Translation:
And I heard a loud voice from the throne saying, “Behold, the dwelling place of God is with man. He will dwell with them, and they will be his people, and God himself will be with them as their God.

Footnotes

27

Every translation makes a very redundant rendering resulting in a rather confusing, and senseless verse, i.e. "the tent of God is with them, and he is tenting with them, and God himself will be with them"

The word Ἰδοὺ "Behold!" "Look!" beckons the reader to pay close attention to the following text. But looking closely at such a redundant saying only leaves the reader scratching his or her head.

σκηνώσει "is tabernacling/tenting" is 3rd person singular and can take either a masculine or feminine subject.