Why is grace through faith essential for salvation?

The doctrine of grace through faith is foundational in Reformed theology, asserting that salvation is an unmerited gift from God (Ephesians 2:8-9). Humanity, due to its fallen state, cannot contribute to their own salvation; thus, it must wholly rely on God's grace. This principle is underscored by Paul in Romans, where he emphasizes that faith itself is a result of God's initiative and not a human effort. When addressing the unconverted, it is crucial to communicate that although they are powerless to save themselves, they can embrace the gospel promises of grace and mercy offered in Christ, who is willing to grant them the gift of faith and repentance.