New International Version
And I saw an angel coming down out of heaven, having the key to the Abyss and holding in his hand a great chain.

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.

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.

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.

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.

World English Bible
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,

Revelation 20:1 Additional Translations ...