Why is Christ's propitiation important for Christians?

In 1 John 2:2, it states that Jesus Christ is the propitiation for our sins, meaning He has borne the wrath of God on our behalf. This underscores the sovereign grace of God, emphasizing that Christ’s sacrifice was intentional and effective for those whom God chose to save. Understanding propitiation assures believers that their sins are not merely overlooked but fully dealt with through the righteousness of Christ. This foundational truth of salvation encourages Christians to rest in the assurance that in Christ, our sins cannot be charged against us (Romans 8:33-34).