Revelation 20:1

Καὶ εἶδον ἄγγελον καταβαίνοντα ἐκ τοῦ οὐρανοῦ, ἔχοντα τὴν κλεῖν τῆς ἀβύσσου, καὶ ἅλυσιν μεγάλην ἐπὶ τὴν χεῖρα αὐτοῦ.

RBT Greek Interlinear:

Strongs 2532; Kai; Καὶ; And; Conj

Strongs 3708; eidon; εἶδον; I/they perceived; V-AIA-1S

Strongs 32; angelon; ἄγγελον; angel; N-AMS

Strongs 2597; katabainonta; καταβαίνοντα; he who is climbing down; V-PPA-AMS

Strongs 1537; ek; ἐκ; from out; Prep

Strongs 3588; tou; τοῦ; the; Art-GMS

Strongs 3772; ouranou; οὐρανοῦ; heaven; N-GMS

Strongs 2192; echonta; ἔχοντα; he who is holding; V-PPA-AMS

Strongs 3588; tēn; τὴν; the; Art-AFS

Strongs 2807; klein; κλεῖν; key; N-AFS

Strongs 3588; tēs; τῆς; the; Art-GFS

Strongs 12; abyssou; ἀβύσσου; Abyss; N-GFS

Strongs 2532; kai; καὶ; and; Conj

Strongs 254; halysin; ἅλυσιν; a chain; N-AFS

Strongs 3173; megalēn; μεγάλην; mega; Adj-AFS

Strongs 1909; epi; ἐπὶ; upon; Prep

Strongs 3588; tēn; τὴν; the; Art-AFS

Strongs 5495; cheira; χεῖρα; hand; N-AFS

Strongs 846; autou; αὐτοῦ; himself; PPro-GM3S

RBT Translation:

And I perceived an angel, he who is climbing down from out of the Heavenly One, he who is holding the Key of the Abyss and a mega chain upon the Hand of himself.

Mega Chain on the Hand of himself

And he is becoming within the Seventh One. And he is saying, "Behold! a cloud of a little one like a palm of a man, she who climbs up from the dual water!" And he is saying, "Climb up! Say toward Brother of Father, Bind and climb down, and the Rain Shower should not hold yourself back!"

(1 Kings 18:44 RBT)

Julia Smith Literal 1876 Translation:
And I saw an angel coming down out of heaven, having the key of the abyss, and a great chain in his hand.

LITV Translation:
And I saw an angel coming down out of Heaven, having the key of the abyss, and a great chain on his hand.