Revelation 20:3-5

³and he threw him into the abyss and shut it and sealed it over him, so that he would not deceive the nations any longer, until the thousand years were completed; after these things he must be released for a short time.

⁴Then I saw thrones, and they sat on them, and judgment was given to them. And I saw the souls of those who had been beheaded because of their testimony of Jesus and because of the word of God, and those who had not worshiped the beast or his image, and had not received the mark on their foreheads and on their hands; and they came to life and reigned with Christ for a thousand years. ⁵The rest of the dead did not come to life until the thousand years were completed. This is the first resurrection.