The writings of the church fathers were an addition to the New Testament. The Didache contained numerous quotations from Matthew and Luke and declares them to be divinely inspired. Clement quoted from many of the Epistles. The church fathers believed the New Testament to be inspired by God.
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.