Berean Study Bible
Then I saw an angel coming down from heaven with the key to the Abyss, holding in his hand a great chain.

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

American Standard Version
And I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand.

Darby Bible Translation
And I saw an angel descending from the heaven, having the key of the abyss, and a great chain in his hand.

Douay-Rheims Bible
And I saw an angel coming down from heaven, having the key of the bottomless pit, and a great chain in his hand.

English Revised Version
And I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand.

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,