The concept of (;
divine essence) is one of the most important concepts in
Christian theology. It was developed gradually by
Early Church Fathers during the first centuries of
Christian History. Central debates over the doctrinal use and meaning of οὐσία were held during the 4th century, and also continued later, some of them lasting up to the present day.
New Testament The word is used in the New Testament only in relation to the
substance in the sense of
goods, twice in the
parable of the Prodigal Son where the son asked his father to divide to him his inheritance, and then wasted it on riotous living. An apparently related word, (affixing the prefix
epi- to the word), is used in the
Lord's Prayer, but nowhere else in the scriptures. Elsewhere, it was believed to be present in one papyrus (a list of expenses) among expenses for chick-peas, straw, etc., and for material. In 1998, according to a
xerographic copy of a papyrus found in the Yale Papyrus Collection (from the Beinecke Rare Book and Manuscript Library) inventory 19 (a.k.a.
P.C.+YBR inv 19), it was suggested that the document had been transcribed differently from other early manuscripts and that the actual word used in that particular papyrus was
elaiou, meaning "oil".
Early Christianity Origen (d. 251) used
ousia in defining God as
one genus of ousia, while being three, distinct species of
hypostasis: the Father, the Son, and the Holy Spirit. The
Synods of Antioch condemned the word
homoousios (same essence) because it originated in pagan Greek philosophy. John Chapman's
Catholic Encyclopedia entry for
Paul of Samosata states: In 325, the
First Council of Nicaea condemned
Arianism and formulated the
Nicene Creed, which stated that in the
Godhead the Son was
Homoousios (same in essence) of the Father. However, controversy did not stop and many Eastern clerics rejected the term because of its earlier condemnation in the usage of Paul of Samosata. Subsequent Emperors
Constantius II (reigned 337–361) and
Valens (reigned 364–378) supported Arianism and theologians came up with alternative wordings like
Homoios (similar),
homoiousios (similar in essence), or
Anomoios (unsimilar). While the
Homoios achieved the support of several councils and the Emperors, those of an opposing view were suppressed. The adherents of the
Homoiousios eventually joined forces with the (mostly Western) adherents of the
Homoousios and accepted the formulation of the
Nicene Creed. The generally agreed-upon meaning of
ousia in
Eastern Christianity is "all that subsists by itself and which has not its being in another"in contrast to
hypostasis, which is used to mean "reality" or "existence".
John Damascene gives the following definition of the conceptual value of the two terms in his Dialectic: Ousia is a thing that exists by itself, and which has need of nothing else for its
consistency. Again, ousia is all that
subsists by itself and which has not its being in another. ==See also==