What does the Bible say about Christ's authority in the resurrection?

In John 20:19-20, we see the profound authority of the resurrected Christ as He appears to His disciples, showing them His hands and sides. This emphasizes that He has conquered death, providing peace and gladness to His followers. His resurrection validates His divine authority, confirming that He is indeed the eternal Son of God, who laid down His life and took it up again (John 10:18). Through His resurrection, Christ not only affirms His power over death but also secures reconciliation and eternal life for His people.