How do we know that Christ's resurrection is central to our faith?

In the narrative of John 12, Christ not only anticipates His death but also speaks to the hope of resurrection and glory that follows. His resurrection signifies the firstfruits of them that slept (1 Corinthians 15:20), demonstrating that He conquers death permanently—a victory not just for Himself but for all who believe in Him. The resurrection affirms the Father's acceptance of Christ's sacrifice and guarantees that those who are united with Him in death will also be resurrected to eternal life (Romans 6:5). Thus, the resurrection is foundational to Christian hope and assurance, confirming that Jesus is the promised Messiah.