How do we know that Christ is the firstborn from the dead?

The designation of Christ as the 'firstborn from the dead' in Colossians 1:18 signifies His unique authority and precedence over resurrection. This is not merely chronological but indicates His supremacy in both His resurrection and the promise of new life for believers. By being the firstborn, He assures us of our future resurrection, as His victory over death secures our hope. It illustrates that just as Christ was raised, all who are in Him will also be resurrected, reinforcing the idea that through Christ, God's promises will be completed. Therefore, His resurrection is the ultimate assurance for believers of God's faithfulness.