The extent, means, and scope of justification are areas of significant debate. Broadly speaking, Catholics and Orthodox Christians distinguish between initial justification—which in their view occurs at baptism—and final justification, accomplished after a lifetime of striving to do God's will. Protestants believe that justification is a singular act in which God declares an unrighteous individual to be righteous because of the work of Jesus. Justification is granted to all who have faith, but even that is viewed as a gift from God by Calvinists, who use (compare Eph 2:8) to support that belief.