How do we know that God's purpose includes suffering for believers?

Throughout Scripture, God provides insight into the purpose of suffering in the lives of believers. It is established that suffering is not always a result of personal sin, but rather a tool used by God to refine and mature His people. Romans 8:28 asserts that all things, including suffering, work together for good to those who love God. Furthermore, this suffering is intended to conform believers to the image of His Son, demonstrating God's ultimate purpose for them. In the lives of faithful servants of God, like Job and the Apostle Paul, we see that their trials were not in vain; they were crafted by God to reveal His glory and bring about His purposes, whether in the context of personal sanctification or the broader mission of proclaiming the gospel.