Revelation 2:10
Do not fear what you are about to suffer. Look, the devil is about to throw some of you into prison to test you, and you will suffer tribulation for ten days. Be faithful even unto death, and I will give you the crown of life.

Daniel 1:13
Then compare our appearances with those of the young men who are eating the royal food, and deal with your servants according to what you see."

Daniel 1:15
And at the end of ten days, their appearance was better and healthier than all the young men who were eating the king's food.