This is one area where evangelicals are totally blind to scripture. The worth of suffering is EVERYWHERE in the NT. Here are some that were actually part of some Protestant counseling I did.
7During the days of Jesus’ life on earth, he offered up prayers and petitions with loud cries and tears to the one who could save him from death, and he was heard because of his reverent submission. 8Although he was a son, he learned obedience from what he suffered 9and, once made perfect, he became the source of eternal salvation for all who obey him 10and was designated by God to be high priest in the order of Melchizedek.
And we rejoice in the hope of the glory of God. 3Not only so, but we also rejoice in our sufferings, because we know that suffering produces perseverance; 4perseverance, character; and character, hope.
16The Spirit himself testifies with our spirit that we are God’s children. 17Now if we are children, then we are heirs—heirs of God and co-heirs with Christ, if indeed we share in his sufferings in order that we may also share in his glory.
18I consider that our present sufferings are not worth comparing with the glory that will be revealed in us.
2 Cor 1
3Praise be to the God and Father of our Lord Jesus Christ, the Father of compassion and the God of all comfort, 4who comforts us in all our troubles, so that we can comfort those in any trouble with the comfort we ourselves have received from God. 5For just as the sufferings of Christ flow over into our lives, so also through Christ our comfort overflows. 6If we are distressed, it is for your comfort and salvation; if we are comforted, it is for your comfort, which produces in you patient endurance of the same sufferings we suffer.
10Brothers, as an example of patience in the face of suffering, take the prophets who spoke in the name of the Lord. 11As you know, we consider blessed those who have persevered. You have heard of Job’s perseverance and have seen what the Lord finally brought about. The Lord is full of compassion and mercy.
1 Peter 1
6In this you greatly rejoice, though now for a little while you may have had to suffer grief in all kinds of trials. 7These have come so that your faith—of greater worth than gold, which perishes even though refined by fire—may be proved genuine and may result in praise, glory and honor when Jesus Christ is revealed.
And one of the major ones:
1Therefore, since we are surrounded by such a great cloud of witnesses, let us throw off everything that hinders and the sin that so easily entangles, and let us run with perseverance the race marked out for us. 2Let us fix our eyes on Jesus, the author and perfecter of our faith, who for the joy set before him endured the cross, scorning its shame, and sat down at the right hand of the throne of God. 3Consider him who endured such opposition from sinful men, so that you will not grow weary and lose heart.
4In your struggle against sin, you have not yet resisted to the point of shedding your blood. 5And you have forgotten that word of encouragement that addresses you as sons:
“My son, do not make light of the Lord’s discipline,
and do not lose heart when he rebukes you,
6because the Lord disciplines those he loves,
and he punishes everyone he accepts as a son.”[a]
7Endure hardship as discipline; God is treating you as sons. For what son is not disciplined by his father? 8If you are not disciplined (and everyone undergoes discipline), then you are illegitimate children and not true sons. 9Moreover, we have all had human fathers who disciplined us and we respected them for it. How much more should we submit to the Father of our spirits and live! 10Our fathers disciplined us for a little while as they thought best; but God disciplines us for our good, that we may share in his holiness. 11No discipline seems pleasant at the time, but painful. Later on, however, it produces a harvest of righteousness and peace for those who have been trained by it.
12Therefore, strengthen your feeble arms and weak knees. 13"Make level paths for your feet,"** so that the lame may not be disabled, but rather healed.**