How do we know salvation is entirely a work of God?

The biblical view of salvation is rooted in the sovereignty of God, demonstrating that it is a divine act rather than a human endeavor. In Acts 2:39, Peter states that the promise of salvation is for all whom the Lord our God shall call, underscoring that God is the initiator of salvation. Regeneration, faith, and repentance are gifts from God, affirming that no one can come to faith without His prior work in the heart (John 6:44). This assures believers that their salvation is secure, as it rests on God's faithfulness rather than human effort.