Editing Holy Trinity

The "'''Trinity'''" or, "'''Holy Trinity'''" of the '''Father''', the '''Son;;; and the '''Holy Spirit'''

* Note: see glossary entry on [[Glossary of terms for catechism of the Catholic faith#holy |"Holy"]]

== Terminology of the Trinity ==

=== Godhead ===
The Trinity may also be referred to as the "'''Godhead'''"
* = God in the full nature of the Trinity 
** from Middle English ''God'' + ''hede'' (nature of)

=== hypostasis ===
or "hypostatic union" refers to the oneness of God in the three persons of God

=== Triune === 
a similar reference to "Godhead" for the Holy Trinity 
* but also used as an adjective, as in "the Triune God"

== The Trinity ==
From the "Athanasian Creed"  per [CCC 264|https://www.usccb.org/sites/default/files/flipbooks/catechism/72/]:
<pre>"Now this is the Catholic faith: We worship one God in the Trinity and the Trinity in unity, without either confusing the persons or dividing the substance; for the person of the Father is one, the Son's is another, the Holy Spirit's another; but the Godhead of the Father, Son and Holy Spirit is one, their glory equal, their majesty coeternal" (Athanasian Creed: DS 75; ND 16).</pre>
* See 
** [https://www.ewtn.com/catholicism/teachings/athanasian-creed-209 The "Athanasian" Creed] (slightly different translation from EWTN)
** encyclopedic entry [https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/denzinger|on Heinrich Denzinger and his work, "Handbook of Creeds, Definitions and Declarations on matters of faith and morals"]


* the mystery of God in three Persons: Father, Son, and Holy Spirit
** called collectively the "'''Godhead'''" or the "'''Triune'''"
** also, the "'''Blessed Trinity'''"
* the Trinisy consists of the 
** Persons of God: ''Father Son and Holy Spirit''
** Natures of God: ''Creator, Redeemer, and Sanctifier''
* the Trinity was source of much conflict and contention in the early Church
* and, ultimately, a core tenant of Church doctrine
** Jews were offended that fellow Jews worshiped Christ, as Judaism was supposed to be monotheistic
** Romans considered Christians atheistic, as they rejected Roman gods and refused to worship Caesar
** gnostics and other heretics believed that Jesus fully God and not a Man, thus he was either not a man or not God
* St. Thomas Aquinas deeper thought on the Trinity in ''Summa Theologica''
** involves extensions from the concepts of the Trinity and the Oneness of God:
** One God
** Two Processions
**# The Father > The Son (Generation)
**# The Father and The Son >  Holy Spirit (Spiration)
*** Three Persons
***# The Father
***# The Son
***# The Holy Spirit
*** Four Relations
***# The Father > The Son = ''Paternity''
***# The Son < The Father = ''Filiation''
***# The Father and The Son > The Holy Spirit = ''Active Spiration'' (originiation)
***# The Father and The Son < The Holy Spirit = ''Passive Spiration'' (procession)
*** Five Notions
***# The Father > innascibility or unbegottennes
***# The Father > paternity, i.e. The Father > The Son
***# The Father and The Son "spirate" the Holy Spirit
***# The Son = both Filiation and Spiration
***# The Holy Spirit = Procession
*** notes:
**** St. Thomas wrote in ''Summa Theologica'', 
***** ''"Although there are four relations in God, one of them, spiration, is not separated from the person of the Father and of the Son, but belongs to both;"'' 
**** these relations, originatinos, and processions are internal to God and not related to temporal process (outside of time)
**** See:
***** Univ Notre Dame: [https://www3.nd.edu/~afreddos/courses/417/trinityhandout.pdf trinityhandout.pdf]
***** [https://catholicism.org/the-relations-in-the-blessed-trinity.html The 'Relations' in the Blessed Trinity - Catholicism.org] 
***** [https://prodigalcatholic.com/summary-of-chapter-23-trinitarian-relations-and-notional-names-of-persons-from-whites-book-the-trinity/ Summary of Chapter 23: Trinitarian Relations and Notional Names of Persons (from White’s book, The Trinity) – Prodigal Catholic]