How do we know that salvation comes through God's sovereignty?

The doctrine of salvation by God's sovereignty is well-founded in Scripture. Ephesians 1:4-5 states that God chose us in Christ before the foundation of the world, underscoring that our salvation is not a product of human efforts or decisions but a result of God's eternal decree. This reflects the nature of grace; it is unmerited and completely dependent on God's will. In His sovereign grace, God works in the hearts of the elect, making them willing to accept Christ, as affirmed in Philippians 2:13, where it is declared that 'it is God which worketh in you both to will and to do of His good pleasure.' Therefore, the certainty and assurance of our salvation come from God's sovereign mercy and His commitment to fulfill His promises.