How do we know that God's choice is central to salvation?

God's sovereign choice in salvation is a core principle of Reformed theology. Jesus states in John 10:27-29 that His sheep hear His voice, and He knows them, thereby assuring that they are safe in His hands. This emphasizes the concept of election, where God, in His grace, chooses certain individuals for salvation according to His own purpose. In Ephesians 1:4-5, Paul reinforces this doctrine by teaching that believers were chosen in Christ before the foundation of the world, underscoring that salvation is an act of God’s unmerited favor, not human effort or decision-making.