Fear none of those things which you will suffer: behold, the devil shall cast some of you into prison, that you may be tried; and you shall have tribulation ten days: be faithful unto death, and I will give you a crown of life.
All Commentaries on Revelation 2:10 Go To Revelation 2
Cyprian of Carthage
AD 258
They have endured and have carried the uncorrupted and unstained merits of their virtues through, even unto the end. And, again, it is written, "Be thou faithful unto death, and I will give thee a crown of life.".
And in the Apocalypse, divine protection is promised to our sufferings. "Fear nothing of these things "it says, "which thou shalt suffer.".
Also in the same place: "Be thou faithful even unto death, and I will give thee a crown of life."