Why is it vital for Christians to understand the difference between law and gospel?

A comprehensive understanding of the difference between law and gospel is critical for Christians. The law reveals our sin and necessity for a Savior, as it cannot absolve us from guilt (Romans 3:20). The gospel, however, is the proclamation of God’s redemptive work through Jesus Christ, offering salvation and assurance. This distinction keeps believers from slipping into self-reliance. When Christians confuse the two, they may attempt to fulfill the law to gain favor with God, thus undermining the grace that is freely offered in the gospel. Instead, they must grasp that salvation comes through Christ alone, leading them to walk in the Spirit as a response of gratitude rather than obligation.