How do we know Jesus' death and resurrection are essential for salvation?

The death and resurrection of Jesus Christ are central to the gospel and the basis of our salvation. He died for our sins and rose again for our justification, which Paul writes about in Romans 4:25. This act accomplished our redemption through satisfying divine justice and bringing everlasting righteousness for His people. His resurrection is a testament to His victory over sin and death, affirming that those who believe in Him will also be raised to eternal life. Thus, understanding His sacrifice and triumph is crucial for embracing the fullness of salvation.