What does the Bible say about God's sovereignty in saving people?

In Ephesians 1:4-5, we see that God chose us in Christ before the foundation of the world, indicating His sovereign grace in salvation. This teaching reflects the Reformed understanding that God, in His eternal purpose, predestines some for salvation based solely on His will and grace, not on any foreseen merit or action on their part. Throughout Scripture, we see that God's sovereignty is crucial for understanding salvation, and it provides comfort in knowing that our salvation is secure in His hands, reflecting His faithfulness to His covenant.