How do we know that salvation is God's will, not man's will?

The doctrine of God's sovereignty over salvation is foundational in Reformed theology. In Matthew 11:27, Jesus states that no one knows the Father except the Son and those to whom the Son chooses to reveal Him. This indicates that God's choosing is sovereign and not contingent on human efforts or decision-making. Additionally, John 5:21 underscores this idea by declaring that the Son gives life to whom He chooses, illustrating the complete authority of Christ in the salvation process. Thus, it is evident that salvation is rooted in God's will, emphasizing His grace and mercy rather than human merit.