Rev. 20:1-10 The satan (‘the accuser’ on the ‘Day of Judgement’) is locked away for a thousand years. Believers who have died for their faith come back to life and reign with Christ for a thousand years. The satan is released for a short time after a thousand years; but he is defeated again, and his plans to condemn followers of Christ to eternal death are frustrated. Consequently, the rest of the believers who have died before Jesus’s second coming are resurrected and rise from their graves to gain eternal life.
An open tomb at the Biblical Research Centre, En Kerem (Revelation 20:5)