The answer
St. Cyprian insists that outside the Church there is no salvation, either for heretics or for schismatics: “He can no longer have God for his Father, who has not the Church for his mother.”243 Therefore, the true interpretation of Scripture and orthodox doctrines are found only within the true Church. The tradition of the true Church is the guardian of the Christian faith.
Fr. Tadros Yacoub Malaty
Notes
243 St. Cyprian of Carthage, On the Unity of the Church 6 (ANF 5:423); Letter 73.7 (ANF 5:388).