“I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand.”
Revelation 20:1 (WEB)
Context Reading
1I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand. 2He seized the dragon, the old serpent, who is the devil and Satan, who deceives the whole inhabited earth,and bound him for a thousand years, 3and cast him into the abyss, and shut it and sealed it over him, that he should deceive the nations no more until the thousand years were finished. After this, he must be freed for a short time.