Jesus taught that we must endure trials to remain useful to God.

Mark 9:49-50

49 “You must endure difficulties in order that God will be pleased with you. Your difficulties are like a fire that makes things pure [MET]. Your enduring is also like [MET] salt being put on {people putting salt on their} sacrifices to make them pure. 50 Salt is useful to put on food, but you cannot [RHQ] make salt to taste salty again if it becomes flavorless [MET]. Similarly, you must remain useful to God, because no one can make you useful to God again if you become useless. You must also live peacefully with each other.”