filioque

Latin work translated as “and of the Son.” This term was added to the Western version of the Nicene Creed to indicate that the Holy Spirit “proceeds from the Father and the Son” which is referred to as the doctrine of “double procession.” This concept was rejected by the Eastern Orthodox bishops and was the final straw causing the schism between the Eastern and Western churches in 1054, and the official separation of Eastern Orthodox from Roman Catholic religions.