Revelation 20:1-2

The Thousand Year Reign

20:1 Then I saw an angel descending from heaven, holding in his hand the key to the abyss and a huge chain. 20:2 He seized the dragon – the ancient serpent, who is the devil and Satan – and tied him up for a thousand years.

Revelation 20:7

Satan’s Final Defeat

20:7 Now when the thousand years are finished, Satan will be released from his prison