How do we know Christ's resurrection is crucial for salvation?

The resurrection of Christ is pivotal for salvation as it confirms that Christ's atoning sacrifice was accepted by God. Romans 4:25 emphasizes that He was raised for our justification. Without the resurrection, the hope of believers would be in vain, as it is through His resurrection that we are assured of our own future resurrection and righteousness before God. This is foundational to the historic Reformed understanding of salvation, highlighting that through Christ, believers are both justified and given eternal life.