And after that I looked, and, behold, the temple of the tabernacle of the testimony in heaven was opened:
Berean Study Bible (BSB) - Revelation 15:5 >After this I looked, and the temple—the tabernacle of the Testimony—was opened in heaven.
Textus Receptus (TR) - Revelation 15:5 >Καὶ μετὰ ταῦτα εἶδον, καὶ ἰδού, ἠνοίγη ὁ ναὸς τῆς σκηνῆς τοῦ μαρτυρίου ἐν τῷ οὐρανῷ·