How do we know that Jesus' hour of suffering was significant?

Jesus explicitly states that His hour has come, which signifies the appointed time for His suffering and death. According to the sermon, this hour was ordained by God before the foundation of the world for the purpose of bringing about the salvation of His people. This event is the culmination of all history, representing the moment when Christ would bear the sins of the elect and satisfy divine justice. Without this crucial hour of suffering, there would be no hope for redemption or reconciliation with God.