How do we know that salvation is a work of God and not of ourselves?

The assurance that salvation is entirely a work of God can be found throughout Scripture. For instance, 1 Peter 1:5 states that we are kept by the power of God unto salvation. This means our faith and salvation are not dependent on our fluctuating will or actions, but solely on God's sustaining power. Moreover, Ephesians 2:8-9 emphasizes that it is by grace we are saved through faith, and this is not from ourselves, but it is the gift of God, not by works, so that no one can boast. This teaching underscores the grace of God in election, calling, and keeping His people.