Berean Standard Bible (BSB)
Then I saw an angel coming down from heaven with the key to the Abyss, holding in his hand a great chain.
World English Bible (WEB)
I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand.
Strong's King James
And{G2532} I saw{G1492}{(G5627)} an angel{G32} come down{G2597}{(G5723)} from{G1537} heaven{G3772}, having{G2192}{(G5723)} the key{G2807} of the bottomless pit{G12} and{G2532} a great{G3173} chain{G254} in{G1909} his{G846} hand{G5495}.
The F.O.G *
(1) I saw an angel coming down from the sky, having the deep-abyss key and a great chain upon his hand.
The F.O.G Message *
Young's Literal Translation
And I saw a messenger coming down out of the heaven, having the key of the abyss, and a great chain over his hand,