“If you want to attain salvation, learn and keep in your heart all that the holy Church teaches and, receiving heavenly power from the mysteries of the Church, walk the path of Christ’s commandments, under the direction of lawful pastors, and you will undoubtedly attain the Heavenly Kingdom and be saved. All of this is naturally necessary in the matter of salvation, necessary in its entirety and for all. Whoever rejects or neglects any part of it has no salvation.”
(St. Theophan the Recluse, Five Teachings)