Revelation 21:3

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.