How does God's eternal purpose relate to our salvation?

The concept of God's eternal purpose is foundational in understanding salvation from a Reformed perspective, as outlined in Ephesians 3:8-12. Here, Paul underscores that God's plan for salvation was established from the beginning of the world, not as a reaction to human sin but as an intentional decree. This means that God has chosen to save His people through Christ, who fulfilled the law's demands and established a covenant relationship with them. Therefore, the assurance of salvation rests not on our actions but on God's sovereign will, showing that our security in Christ is assured through God's eternal purpose.