Under the guidance of Martin Luther, Germany began the religious reform movement, which was a social and ideological reform movement against the Catholic Church. Protestantism, founded after the reform, entered the stage of European history and formed a new situation of tripartite confrontation with the original Catholicism and Orthodox Church. "Justification by faith", as long as you believe in God, your soul can be saved, not atoned for by good deeds; Simplify religious ceremonies.