Rev 2:9-10

9“I know your affliction and your poverty, even though you are rich. I know the slander on the part of those who say that they are Jews and are not, but are a synagogue of Satan.10Do not fear what you are about to suffer. Beware, the devil is about to throw some of you into prison so that you may be tested, and for ten days you will have affliction. Be faithful until death, and I will give you the crown of life.