The major contribution made by the church fathers to the canon was their use and referral to the Gospels and to the letters of the Apostles as Scripture, inspired by God. Clement of Rome quoted from many of the Epistles.
Who is the leader of the Protestant Church?
Martin Luther, often called the father of Protestantism, fundamentally changed the Christian world through his force of will and new ideas. He tried passionately to reform the Catholic Church.