Why is it important for Christians to understand substitutionary atonement?

Substitutionary atonement is foundational to the Christian faith, conveying that Jesus Christ took our place and bore the penalty for our sins. This truth is essential because it highlights the nature of God's justice and mercy. In Romans 5:8, we learn that while we were yet sinners, Christ died for us, showing that salvation is a gift rooted in grace rather than human works. For Christians, recognizing this allows them to approach God with confidence, understanding that Christ's righteousness is applied to them through faith. Additionally, it fosters humility, reminding believers that there is nothing they can do to earn salvation; it is entirely the result of God's sovereign grace.