Why is it important for Christians to understand that salvation is of the Lord?

For Christians, grasping the truth that 'salvation is of the Lord' is core to their faith, enhancing their appreciation of God's grace while diminishing reliance on personal merit. This perspective fosters humility, as believers acknowledge that their transformation and reconciliation to God is solely attributed to His initiative and mercy. The implications of this understanding are profound; it protects believers from falling into self-righteousness and teaches them to lean entirely on Christ’s finished work. Furthermore, the assurance found in knowing that God is the author, executor, and sustainer of salvation instills the confidence that their salvation cannot be lost or undone.