And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.
Berean Study Bible (BSB) - Revelation 20:1 >Then I saw an angel coming down from heaven with the key to the Abyss, holding in his hand a great chain.
Textus Receptus (TR) - Revelation 20:1 >Καὶ εἶδον ἄγγελον καταβαίνοντα ἐκ τοῦ οὐρανοῦ, ἔχοντα τὴν κλεῖδα τῆς ἀβύσσου, καὶ ἅλυσιν μεγάλην ἐπὶ τὴν χεῖρα αὐτοῦ.