How do we know salvation is by the will of God?

The doctrine of salvation by God's will is fundamental to Reformed theology, specifically highlighted in Ephesians 1:4 where Paul states that God chose us in Him before the foundation of the world. This emphasizes that salvation is not a result of human choice or actions but is solely initiated by God's sovereign will. It underscores the belief that God has elected His people to salvation and that this divine choice precedes any merit or faith on our part. Thus, the assurance of salvation is grounded in the unchanging will of God, revealing the depth of His grace and mercy.