Orthodox Christian Doctrine -- Orthodox Christian Doctrine are about the true Christian Doctrine before the tragic split in 1054 A. D. -- All later amendments, modifications or direct changes to original Christian Doctrine the Orthodox cannot accept as Doctrine for the full Church did not participate in its formulation. -- ‘ Doctrine’ is originally a Latin word -- to be understood as " teaching, mastering or convincing ". -- We understand it as Divine Teaching. -- Doctrine in itself is not a theological subject but a concentration of various Christian subjects including: Revelation , Tradition , the Bible , Liturgy , Ecumenical Councils , Holy Fathers , Saints , Canons and finally Church Art . Divine Revelation At any Orthodox Thanksgiving Service and at Matins we proclaim "God is the Lord and has revealed Himself unto us; blessed is He who comes in the Name of the Lord." (Ps 118:26-27). The principal foundation of Christian Doctrine is knowledge that "God has revealed Himself to us." He has revealed Himself to His creation. But it is evident that He has revealed only what man could see and understand of His Divine Nature and Will. The full perfection of God's revelation could be found in His Son Jesus Christ in accordance with the Old Testament; yet in the New Testament. Jesus Christ, is one fully "blessed ... who comes in the Name of the Lord. " According to Old Testament sources Jesus came exclusively as a Teacher sent from God. Therefore He was often addressed as " Rabbi-Teacher" or in English "'Master". Jesus' followers were called disciples, that is students or pupils. Jesus is called Christ as well; it is a Greek word translated from the Hebrew "Messiah" which means "anointed by God" relating to "taught by God" as foretold by the prophets Isaiah (54:13) and John (6:45). Christ emphasises often that His words are those of God, that is "One having authority", not as an ordinary Jewish teacher. He said clearly; "He who believes in me, believes not in me but in Him who sent me." Apart from words He taught by action as well, not only speaking or acting by Himself, for He was the Living Word of God in human flesh, the "Logos" who is eternal, uncreated, but who has become man as Jesus. Being God in flesh He was inspired by God's Holy Spirit, the Spirit of Truth (Jn 15:26), to "Make disciples of all nations." The Doctrine of Jesus became the apostle's Doctrine and thus became the Doctrine of the Church. If we desire to hear God's voice and to see His actions, we must purity our minds and hearts from everything wicked and false. Holy Tradition Tradition is in fact the on-going life of God's People. The Old Testament and its tradition are fulfilled, completed and transcended in the person of the Messiah and
in the Christian Church. New Testament Tradition is also called Apostolic Tradition.