Revelation 2:10-11

10I know that trouble will soon come to you. But do not be afraid. Listen! The Devil will cause some of you to go to prison. He wants to see whether you will continue to believe in me. As a result, you will suffer for ten days. But continue to trust me, even if you die. Then you will win against the Devil. I will give you a gift, as they give a crown to the winner of a race. You will have life with me for ever.

11God's Spirit is speaking to you in the churches. You should understand what the Spirit is saying to you. You have ears, so listen carefully! The second death will not hurt anyone who wins against Satan.” ’