How do we know Christ's suffering was necessary?

Christ's suffering was essential for Him to fulfill the role of our Great High Priest and to provide eternal salvation. According to Hebrews 5:8-9, even though He was the Son of God, He learned obedience through suffering, which equipped Him to become the author of eternal salvation for all who obey Him. This necessity is reflective of God's redemptive plan, as it underscores that through His own suffering, Christ was able to bear the sins of humanity and achieve reconciliation with God. Luke 24 also affirms that it was necessary for Christ to suffer and enter into His glory, which was pivotal in demonstrating God's love and justice.