Hypostasis
Hypostasis is a word used to refer to who God is. Since Tertullian[1], typically the Orthodox speak of the who of God as being three "persons" of Father, Son, and Holy Spirit. Note that While Person is not totally accurate, it is better than referring to each as "it"; so, for lack of better terminology, Person is the preferred terminology.
Hypostasis' is not to be confused with God's essence/nature (ousia, i.e. what God is), or God's attributes (i.e. what God does).[2]- ↑ https://www.cambridge.org/core/books/abs/from-logos-to-trinity/tertullian-originator-of-the-trinity/646E664F51044E44FA62F4DCC63C1EBD
- ↑ J.P. Farrell, "A Theological Introduction to the Mystagogy of St. Photios," in The Mystagogy of the Holy Spirit, ed. First M. Last Name (Brookline, MA: Holy Cross Orthodox Press, 1987), pp. 17-56.