"until differences arose" . "theological disputes" . "theological controversies between the two Churches" . ":Theological differences between the Catholic Church and the Eastern Orthodox Church" . "theological issue of the Great Schism" . . . "theological differences" . . "Orthodox\u2013Roman Catholic theological differences" . . "Eastern Orthodox Church" . "Theological differences between the Catholic Church and the Eastern Orthodox Church" . "Theological and Liturgical disputes" . . "Theological, and Liturgical disputes" . . . . "Theological differences between the Catholic Church and the Eastern Orthodox Church" .