Revelation 20. Christians differ on how they interpret the binding of Satan. I cannot bring myself to believe that Satan is bound in any way now, so that makes me a premillenialist.
At the end of this chapter is the lake of fire, which (the text says) is the second death. No one escapes that fate unless his or her name is in the Lamb’s book of life. Eternity begins after that.
LORD, thank you for the promise of judgment upon Satan and his kingdom. Thank you for the promise of eternal life in your kingdom.