What role does grace play in the salvation of a sinner?

Grace plays a foundational role in the salvation of a sinner, as it is solely by God's grace that anyone is saved. Ephesians 2:8-9 clearly states that salvation is a gift from God, not a result of human works, emphasizing that it is God's grace that enables us to believe and be saved. This grace is both effectual and irresistible; it brings about regeneration and faith in the hearts of the elect. It is God's grace that compels sinners to turn to Him and accept the salvation offered through Christ's atoning sacrifice. Without this grace, no one could be saved.