Why is understanding substitution important for Christians?

Understanding substitution is vital for Christians because it encapsulates the essence of the Gospel message — that Christ took our place and bore the wrath we deserved. This concept helps us appreciate the grace of God in offering His Son as a means of redemption, emphasizing that salvation is entirely His work, not reliant on our merit. Realizing that we are justified by faith and not by works leads to a profound sense of security and assurance in our salvation. Additionally, comprehending Christ's dual role as both our righteousness and penalty bearer fosters a deep love and gratitude toward Him, motivating our worship and discipleship.