The Bible
Many modern Christians approach the Bible and its interpretation as the sole authority to the establishment of their beliefs concerning the world and their salvation. From the Orthodox point of view, the Bible represents those texts approved by the church for the purpose of conveying the most important parts of what it already believed. The oldest list of books for the canon is the Muratorian fragment dating to ca. 170 (see also Chester Beatty Papyri). The oldest complete canon of the Christian Bible was found at St Catherine's Orthodox Monastery (see Codex Sinaiticus) and later sold to the British by the Soviets in 1933. Parts of the codex are still considered stolen by the Monastery even today. These texts (as a whole) were not universally considered canonical until the church reviewed, edited, accepted and ratified them in 368 AD (also see the Council of Laodicea). Salvation or Soteriology from the Orthodox perspective is achieved not by knowledge of scripture but by being a member of the church or community and cultivating phronema and theosis through participation in the church or community.
Read more about this topic: History Of The Orthodox Church, Apostolic Era, The Patristic Age and The Biblical Canon