Welcome to the WikiChristian! God bless you.
Eastern Orthodoxy Doctrine
From WikiChristian
Eastern Orthodox teaches that its origins extend directly back to Jesus and his Apostles through unbroken Apostolic Succession. Its doctrines were formalized through a series of church councils in the following centuries. It teaches belief in the Trinity, Justification by faith plus works, Veneration of saints the Mysteries (or Sacraments).
See also:

