How do we know the resurrection is central to the Gospel?

The resurrection of Christ is crucial to the Christian faith as it affirms His role as the Savior and proves that His sacrifice on the cross was accepted by God. Paul's letters, particularly 1 Corinthians 15:17, argue that without the resurrection, the Christian faith is futile, and believers remain in their sins. Jesus' resurrection showcases His power over death and His capacity to grant eternal life to all who believe in Him. Thus, the Gospel message must always include His resurrection as a promise of life for those who are united with Him in faith.