KJV ¹ And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.

TR1550 ¹ καὶ εἶδον ἄγγελον καταβαίνοντα ἐκ τοῦ οὐρανοῦ ἔχοντα τὴν κλεῖδα τῆς ἀβύσσου καὶ ἅλυσιν μεγάλην ἐπὶ τὴν χεῖρα αὐτοῦ

KJV ² And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,

TR1550 ² καὶ ἐκράτησεν τὸν δράκοντα τὸν ὄφιν τὸν ἀρχαῖον ὅς ἐστιν διάβολος καὶ σατανᾶς καὶ ἔδησεν αὐτὸν χίλια ἔτη