How do we know that Jesus Christ's sacrifice is sufficient for atonement?

The sufficiency of Christ’s sacrifice for atonement is rooted in its divine purpose and the fulfillment of Old Testament types and shadows. Hebrews 9:12 states that Christ entered the holy place once for all, not by the blood of goats and calves but by His own blood, thus securing eternal redemption. As we reflect on Leviticus 16, we see that the day of atonement required the sacrificial shedding of blood, symbolizing the necessary payment for sin. Jesus’ death on the cross was the ultimate fulfillment of this, representing a perfect and final sacrifice. Through His blood, believers are justified and reconciled to God, receiving mercy and grace, and this assures us that there is no need for any further sacrifice for sin.