The True Faith in Christ
If someone should say that true faith is the correct holding and confession of correct dogmas, he would be telling the truth, for a believer absolutely needs the Orthodox holding and confession of dogmas. But this knowledge and confession by itself does not make a man a faithful and true Christian. The keeping and confession of Orthodox dogmas is always to be found in true faith in Christ, but the true faith of Christ is not always to be found in the confession of Orthodoxy... The knowledge of correct dogmas is in the mind, and it is often fruitless, arrogant, and proud... The true faith in Christ is in the heart, and it is fruitful, humble, patient, loving, merciful, compassionate, hungering and thirsting for righteousness; it withdraws from worldly lusts and clings to God alone, strives and seeks always for what is heavenly and eternal, struggles against every sin, and constantly seeks and begs help from God for this.
-- St. Tikhon, The Gospel and Faith
Lord, have mercy.