It represented a "major theological shift" toward Protestantism. Cranmer's doctrinal concerns can be seen in the systematic amendment of source material to remove any idea that human merit contributed to an individual's salvation. The doctrines of justification by faith and predestination are central to Cranmer's theology. These doctrines are implicit throughout the prayer book and had important implications for his understanding of the sacraments. Cranmer believed that someone who is not one of God's elect receives only the outward form of the sacrament (washing in baptism or eating bread in Communion) but does not receive actual grace. Only the elect receive the sacramental sign and the grace. This is because faith—which is a gift only the elect are given—unites the outward sign and the inward grace and makes the sacrament effective. This position was in agreement with the Reformed churches but was opposed to the Roman Catholic and Lutheran views.