Why is it important for Christians to understand their need for atonement?

Recognizing the necessity of atonement is foundational to the Christian faith. It exposes our sinful nature and our inability to achieve righteousness on our own. Leviticus 16 illustrates that the Day of Atonement was a time for the Israelites to acknowledge their sins and seek God's forgiveness. For Christians today, this realization drives us to depend entirely on Christ's perfect sacrifice for our salvation. In afflicting our souls before the Lord, we acknowledge our need for His mercy and grace, reinforcing that our salvation depends not on our works but on the completed work of Christ on the cross.