Revelation 2:10
Fear none of the things which you shall suffer; behold, the devil will cast some of you into prison, that you may be tried; and you shall have tribulation ten days: be you faithful until death, and I will give you a crown of life.
Revelation 7:14
And I said to him, Sir, you know. And he said to me, These are they who have come out of much tribulation, and have washed their robes, and made them white in the blood of the Lamb:
Revelation 14:15
And another angel came out of the temple of God, crying with a loud voice, to him that sat upon the cloud. Put forth your sickle, and reap; for the season of reaping is come, because the harvest of the earth is ripe.
Revelation 17:17
For God has given it into the hearts to execute his sentence, even to perform one purpose; and to give their kingdoms to the beast, till the words of God be fulfilled.