Revelation 20:6-7

Blessed (happy, prosperous, to be admired) and holy is the person who takes part in the first resurrection; over these the second death [which is eternal separation from God, the lake of fire] has no power or authority, but they will be priests of God and of Christ and they will reign with Him a thousand years. [Ex 19:6; 1 Pet 2:5, 9; Rev 1:6; 5:10] And when the thousand years are completed, Satan will be released from his prison (the abyss)