Why is the concept of Christ's resurrection important for Christians?

The resurrection of Christ is not merely a miraculous event; it is the cornerstone of Christian faith, as it ratifies Jesus' claims about His divine authority. In John 17, when Jesus speaks on His coming glorification, part of this glorification includes the promise of His resurrection. Through His resurrection, Christ not only fulfills the prophecies of Scripture but also provides a definitive assurance of victory over sin and death for all who believe. This event is a testament to God's power and a guarantee of the future resurrection for believers, illustrating the ultimate hope we have of eternal life in Christ. This reinforces the Reformed understanding that through Christ’s resurrection, His completed work of redemption is affirmed, ensuring our security in salvation.