# Orthodox Churches ## Catechism of the Catholic Church Eastern Churches not in full communion with the Catholic Church. Christians of the Orthodox Churches are separated from the Catholic Church (schism), yet are in an imperfect but deep communion with the Catholic Church by reason of our common Baptism, the profession of the Creed, and the possession of true sacraments by reason of the apostolic succession of their priesthood ([[1.2.3.9.p29#^ccc-838|838]], [[2.2.1.3.p42#^ccc-1399|1399]]).