What is the significance of Christ's resurrection in the Gospel?

The resurrection of Christ is central to the Gospel because it signifies the defeat of sin and death, providing assurance of eternal life to those who believe. As Paul emphasizes in 1 Corinthians 15, if Christ has not been raised, then our faith is in vain and we are still in our sins (1 Corinthians 15:17). The resurrection acts not only as a confirmation of Christ's identity as the Son of God but also as the guarantee that believers will likewise be raised to eternal life. This event reshapes the believer's entire outlook on life, death, and their relationship with God.