Revelation 20:1 in the 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.
Context
1 And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.
2 And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,