Revelation 2:10; Revelation 3:11

Revelation 2:10

10 Fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life.

Revelation 3:11

11 Behold, I come quickly: hold that fast which thou hast, that no man take thy crown.