Why is understanding Christ's work important for Christians?

Grasping the work of Christ is essential for Christians because it highlights that salvation is based on what Christ has accomplished, not on human effort. The preacher emphasizes that believers rest in the finished work of Christ, who has fulfilled all the requirements of the law and completed the atonement. This understanding fosters assurance of salvation and strengthens faith, illustrating that believers are clean and righteous before God due to Christ's righteousness and intercession. The assurance provided serves as a foundation for spiritual growth and confidence in one's relationship with God.