Why Is Homoousios Important

Homoousios is one of the most important words in the Christian theological vocabulary, since it was used at the Council of Nicaea to express the divine consubstantiality of the Son with the Father.

What is homoousios in theology?

homoousios, in Christianity, the key term of the Christological doctrine formulated at the first ecumenical council, held at Nicaea in 325, to affirm that God the Son and God the Father are of the same substance. … The council condemned Arianism, which taught that Christ was more than human but not fully divine.

What does the phrase Homoousion mean?

Definition of homoousion : a theological doctrine holding that Christ is of one substance with God the very existence of Christianity … was at stake over the Homoousion— C. H. Turner.