How do you know that YOUR doctrine IS the Nt church doctrine??
Because it is the same Faith that Christ established His Church to protect and transmit with Himself as the head of His Church, the pillar and foundation of Truth. One faith, One baptism, One Church, Holy Catholic and Apostolic... all according to how Our Saviour meant us to be: from Christ through His apostles and their successors to today.
I recognize it in Holy Scripture, in the first century catacombs, the writings of the early martyrs, the Cappadocian Fathers, St. John Damascene, St John Chrysostom, the Doctors of the Church in the Middle Ages, St. John OTC, John Cardinal Henry Newman, Pope John XXIII, Pope John Paul II, Pope Benedict, and in the Mass and liturgy of today...