Why is the doctrine of Christ's atoning death important for Christians?

The doctrine of Christ's atoning death is of paramount importance for Christians, as it encapsulates the very essence of the Gospel. The central truth of Christianity hinges on the belief that Jesus Christ died as a substitute for His people, fulfilling the requirements of the law and satisfying God's justice on our behalf. J.C. Ryle articulated that this doctrine lies at the foundation of Bible religion; if we err here, we are ruined forever. Recognizing that Christ's death was necessary for our salvation informs our understanding of grace and reconciliation with God. Furthermore, it compels believers to live in light of this profound sacrifice, inspiring gratitude, worship, and a commitment to self-denial as we follow Him.