How do we know that Christ's sufferings were necessary for our salvation?

The necessity of Christ's sufferings for our salvation is rooted in God's holy character and the justice that demands payment for sin. In Romans 8:32, it emphasizes that God did not spare His Son, thereby illustrating the depth of His love and the essentiality of Christ’s sacrifice. His sufferings were foretold in the Scriptures, particularly in Psalm 88, which shed light on the personal anguish He bore as He took on the sins of His people. Additionally, His experiencing of wrath was necessary for the justification of those who believe. By enduring these pains, Christ fully satisfied the demands of justice on our behalf and granted us peace with God through His blood, thereby demonstrating the necessity and purpose of His sufferings in achieving our salvation.