How do we know that Jesus must make atonement for our sins?

The understanding that Jesus must atone for the sins of His people arises from multiple foundations in Scripture. Initially, it is clear from words like 'must' in Matthew 16:21, indicating that Christ's suffering was an essential part of God's redemptive plan. Moreover, the Scriptures throughout the Old and New Testaments point to the necessity of sacrifice for the forgiveness of sins (Hebrews 9:22). Without the shedding of Christ's blood, our sins would not be remitted. This emphasis on atonement illustrates God's unwavering commitment to justice and the fulfillment of His covenantal promises. Thus, the atoning work of Jesus is not merely a historical event; it is a divine necessity rooted in God's holy character and will.