This is what the New Advent offers concerning the ORIGINS of 'trinity'.
The dogma of the Trinity
The Trinity is the term employed to signify the central
doctrine of the
Christian religion — the
truth that in the unity of the
Godhead there are Three
Persons, the Father, the
Son, and the
Holy Spirit, these Three
Persons being truly distinct one from another.
Thus, in the words of the
Athanasian Creed: "the Father is
God, the
Son is
God, and the
Holy Spirit is
God, and yet there are not three
Gods but one
God." In this Trinity of
Persons the
Son is begotten of the Father by an
eternal generation, and the
Holy Spirit proceeds by an
eternal procession from the Father and the
Son. Yet, notwithstanding this difference as to origin, the
Persons are co-eternal and co-equal: all alike are uncreated and
omnipotent. This, the
Church teaches, is the
revelation regarding
God's nature which
Jesus Christ, the
Son of God, came upon earth to deliver to the world: and which she proposes to
man as the foundation of her whole
dogmatic system.
In Scripture there is as yet no single term by which the Three Divine Persons are denoted together. The word
trias (of which the Latin
trinitas is a translation) is
first found in
Theophilus of Antioch about A.D. 180. He speaks of "the Trinity of
God [the Father], His
Word and His Wisdom (
To Autolycus II.15). The term may, of course, have been in use before his
time. Afterwards it appears in its Latin form of
trinitas in
Tertullian (
On Pudicity 21). In the next century the word is in general use. It is found in many passages of
Origen ("In Ps. xvii", 15). The first
creed in which it appears is that of
Origen's pupil,
Gregory Thaumaturgus. In his
Ekthesis tes pisteos composed between 260 and 270, he writes:
There is therefore nothing
created, nothing subject to another in the Trinity: nor is there anything that has been added as though it once had not existed, but had entered afterwards: therefore the Father has never been without the
Son, nor the
Son without the
Spirit: and this same Trinity is immutable and unalterable forever (P.G., X, 986).
It is manifest that a
dogma so
mysterious presupposes a
Divine revelation. When the fact of
revelation, understood in its full sense as the speech of
God to
man, is no longer admitted, the rejection of the
doctrine follows as a
necessary consequence. For this reason it has no place in the
Liberal Protestantism of today. The writers of this school contend that the
doctrine of the Trinity, as professed by the
Church, is not contained in the
New Testament, but that it was first formulated in the second century and received final approbation in the fourth, as the result of the
Arian and
Macedonian controversies. In view of this assertion it is
necessary to consider in some detail the evidence afforded by
Holy Scripture. Attempts have been made recently to apply the more extreme theories of comparative
religion to the
doctrine of the Trinity, and to account for it by an imaginary law of nature compelling
men to group the objects of their worship in threes. It seems needless to give more than a reference to these extravagant views, which serious thinkers of every school reject as destitute of foundation.
This is the Catholic Church OPENLY admitting that the TERM 'trinity' was NEVER used until two hundred years AFTER the death of Christ. And when FIRST used, it was NOT 'the trinity' that later evolved into the doctrine in question. Notice that it spoke of NOTHING concerning the relation of Son with Father. It was used in reference to the three specific aspects of the CHARACTER of God Himself. It took another couple of hundred years to find itself in it's present definition.
And these words are offered by the Catholic Church ITSELF. Those that FORMED and INTRODUCED the concept.
Oh, and instead of using the word ROMAN in the future, I'll just refer to the CC, (Catholic Church).
Blessings,
MEC