James 1:2-4
Consider it a great joy, my brothers and sisters, whenever you experience various trials, because you know that the testing of your faith produces endurance. And let endurance have its full effect, so that you may be mature and complete, lacking nothing.
James 1:12
Blessed is the one who endures trials, because when he has stood the test he will receive the crown of life that God has promised to those who love him.
Hebrews 12:1-2a
Therefore, since we also have such a large cloud of witnesses surrounding us, let us lay aside every hindrance and the sin that so easily ensnares us. Let us run with endurance the race that lies before us, keeping our eyes on Jesus, the pioneer and perfecter of our faith.
1 Corinthians 15:58
Therefore, my dear brothers and sisters, be steadfast, immovable, always excelling in the Lord’s work, because you know that your labor in the Lord is not in vain.