What the Bible says about suffering with purpose

1 Peter 1:6-7

Wherein you greatly rejoice, though now for a little while, if need be, you have been put to grief in various trials, that the proof of your faith, which is more precious than gold that perishes even though it is tested by fire, may be found to result in praise, glory, and honor at the revelation of Jesus Christ—

James 1:2-4

Count it all joy, my brothers, when you fall into various temptations, knowing that the testing of your faith produces endurance. Let endurance have its perfect work, that you may be perfect and complete, lacking in nothing.

Romans 8:28

We know that all things work together for good for those who love God, to those who are called according to his purpose.

2 Corinthians 1:3-4

Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort; who comforts us in all our affliction, that we may be able to comfort those who are in any affliction, through the comfort with which we ourselves are comforted by God.

1 Peter 4:12-13

Beloved, don’t be astonished at the fiery trial which has come upon you, to test you, as though a strange thing happened to you. But because you are partakers of Christ’s sufferings, rejoice; that at the revelation of his glory you also may rejoice with exceeding joy.

Philippians 3:10

that I may know him, and the power of his resurrection, and the fellowship of his sufferings, becoming conformed to his death;

Hebrews 5:8-9

though he was a Son, yet learned obedience by the things which he suffered. Having been made perfect, he became to all of those who obey him the author of eternal salvation,

1 Peter 5:10

But may the God of all grace, who called you to his eternal glory by Christ Jesus, after you have suffered a little while, perfect, establish, strengthen, and settle you.