James 1:3-4

1:3 because you know that the testing of your faith produces endurance. 1:4 And let endurance have its perfect effect, so that you will be perfect and complete, not deficient in anything.

James 1:12

1:12 Happy is the one who endures testing, because when he has proven to be genuine, he will receive the crown of life that God promised to those who love him.