Why is the concept of limited atonement important for Christians?

The importance of limited atonement in Reformed theology lies in its assertion that Christ's sacrifice is effectual for those chosen by God for salvation. This means that the redemption achieved through Christ is guaranteed for the elect, providing reassurance that their sins are fully atoned for. Key verses such as John 10:15, where Christ states He lays down His life for His sheep, serve to comfort believers by affirming that their salvation was secured through intentional, specific aims of Christ's work. It also emphasizes God's sovereign grace and the certainty of salvation, steering believers away from uncertainty and towards a deeper trust in God's promises.