What does the Bible say about the purpose of trials?

In Job 23:10, Job says, 'But he knoweth the way that I take: when he hath tried me, I shall come forth as gold.' This illustrates the biblical understanding of trials as tests meant to refine a believer's faith and character. Throughout scripture, God uses afflictions to purify His people, making them more holy and conformed to the image of His Son, Jesus Christ. The intent is not destruction but sanctification, leading to greater reliance on God's grace and developing endurance in the believer's walk with Him. Trials serve to remind us that God is sovereign and knows the end from the beginning, sustaining us through every difficulty.