What does the Bible teach about the necessity of grace for salvation?

Scripture consistently emphasizes that salvation is solely by grace through faith. Ephesians 2:8-9 clearly states that it is by grace we have been saved, highlighting that it is not a result of our works, so no one can boast. This grace is a gift from God and underscores the Reformed perspective that salvation is ultimately rooted in God's sovereign choice. Any attempt to earn salvation or establish righteousness by human efforts or free will fails to acknowledge God's perfect plan and the sufficiency of Christ's atonement.