How do we know that salvation is solely the work of God?

The Bible consistently affirms that salvation is a work of God alone. Ephesians 1:4-5 illustrates this, stating that God chose us in Christ before the foundation of the world, highlighting the sovereign basis of our salvation. This divine choice is not dependent on any action or merit from our side. The Reformed perspective underscores that our works or decisions contribute nothing to our salvation. Instead, it is through God's mercy and grace that we are saved, as expressed in 2 Timothy 1:9, which says, 'Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace.' Therefore, understanding salvation as solely a work of God reinforces the centrality of His glory in the process of redemption.