Berean Study Bible (BSB) - Revelation 17:8 >

The beast that you saw—it was, and now is no more, but is about to come up out of the Abyss and go to its destruction. And those who dwell on the earth whose names were not written in the Book of Life from the foundation of the world will marvel when they see the beast that was, and is not, and yet will be.

Textus Receptus (TR) - Revelation 17:8 >

Θηρίον ὃ εἶδες, ἦν, καὶ οὐκ ἔστι, καὶ μέλλει ἀναβαίνειν ἐκ τῆς ἀβύσσου, καὶ εἰς ἀπώλειαν ὑπάγειν. Καὶ θαυμάσονται οἱ κατοικοῦντες ἐπὶ τῆς γῆς, ὧν οὐ γέγραπται τὰ ὀνόματα ἐπὶ τὸ βιβλίον τῆς ζωῆς ἀπὸ καταβολῆς κόσμου, βλέποντες τὸ θηρίον ὅ, τι ἦν, καὶ οὐκ ἔστι, καίπερ ἔστιν.