What does it mean for salvation to be by grace?

Salvation is explained in Scripture as a gift of grace, meaning it is unearned and freely given by God. Ephesians 2:8-9 states that we are saved by grace through faith, not by our works, ensuring that no one can boast. This grace was purchased by Christ's suffering, which provides the basis for our justification and redemption. Therefore, Christians are assured that their standing before God is secured not by their own righteousness but by the grace of God that manifests through faith in Christ's completed work.