How do we know Jesus' suffering was necessary for salvation?

Jesus' suffering was an essential aspect of God's redemptive plan. He took upon Himself the debt of sin incurred by humanity, thus fulfilling the obligation of divine justice. Through His personal experience of suffering, including His eventual death on the cross, He bore our sins and overcame death, fulfilling the requirements laid out by God's holy law. This highlights the profound necessity of His suffering as not only part of His obedience but as a means of bringing salvation to millions.