Why is it important for Christians to understand who Christ died for?

For Christians, grasping for whom Christ died is essential for a correct understanding of the gospel. The Scriptures detail that Christ's death was for His sheep, His elect, and His church, as seen in passages like John 6:39 and Ephesians 5:25. This realization not only strengthens the believer's assurance in their personal salvation but also highlights the unmerited grace offered by God, contrasting the all-sufficient work of Christ with humanity's innate inability to save themselves. By understanding that salvation is specific and intentional, Christians can grow in their faith, assurance, and gratitude towards God, recognizing that their names were known and incalculably valued by Him before the foundation of the world, as recorded in Revelation 20:15.