The date of the canonization of Scripture is relevant to anybody who claims that the Bible is the Word of God. The canon was set in the late 4th Century. You accept the canon of the New Testament as the Word of God. But in your view, the Church had apostatized 300 years earlier. So by what authority do you accept the New Testament?
That is something that I have heard form Catholics a lot, so I have given a reply to it in my Blog. You can read it
here.
Third and fourth century heresies concerning the nature of Christ are not “our theory.” They are a fact of history.
You disagree that the apostate Church had the authority to combat them. OK. Then how do you not disavow the New Testament canon? The same apostate Church that delineated the doctrine of the Holy Trinity, beginning at Nicea in 325, pronounced the authoritative table of contents (canon) of the New Testament some 60 years later.
First of all this is irrelevant to what you are supposed to be replying to. But to answer it, see above.
I do not know that he was, but he suffered continuous persecution during his lifetime and several exiles from his diocese for his defence of the Trinity and the hypostatic union as defined at Nicea.
Again, that is irrelevant to what the word “Trinity” ultimately means, which is what the original question was about.
Do I? You say that the word “Trinity” is up for grabs. I say that it needs to be used as it has been understood theologically for 1600 years. All I ask is that you hold to a respectable scholarly standard. You are not some kitchen apologist carping about dictionary definitions. This is WAY beyond Webster.
What you are saying is just not true. According to the Wikipedia article on Trinity:
The English word “Trinity” is derived from Latin “Trinitas”, meaning “the number three, a triad”. This abstract noun is formed from the adjective
trinus (three each, threefold, triple), as the word
unitas is the abstract noun formed from
unus (one).
The corresponding word in Greek is “Τριάς”, meaning “a set of three” or “the number three.”
The first recorded use of this Greek word in Christian theology (though not about the Divine Trinity) was by Theophilus of Antioch in about 170. He wrote:
“In like manner also the three days which were before the luminaries, are types of the Trinity Τριάδος], of God, and His Word, and His wisdom. And the fourth is the type of man, who needs light, that so there may be God, the Word, wisdom, man.”
Tertullian, a Latin theologian who wrote in the early third century, is credited with using the words “Trinity,” “person” and “substance” to explain that the Father, Son and Holy Spirit are “one in essence – not one in Person.”
Trinity is a word like any other which refers to the three Members of the Godhead. We are not bound by how post-Apostate Christendom has chosen to define it.
Believe me, I have not lost five minutes of sleep thinking about how I plan to misrepresent Mormonism. By insisting on your own, eccentric, partisan definition of the word “trinity,” YOU are the one misrepresenting Mormonism.
Then I suggest you let me worry about that! LOL!

I don’t know about you; but I do know that the opponents of Mormonism are not exactly scrupulous in their honesty, and will use any dishonest tactics they can think of to misrepresent Mormonism, and I am not going to give them that chance if I can help it.
Create a term of your own for your triple but non-triune God, derived from your understanding of Scripture. That should not be difficult; in fact, it would help you clarify your quarrel with Christianity.
We have. As I said, the theological term we commonly use for the Trinity is the Godhead. But to us the word Trinity means the same thing. The fact that you want to define it in some other way is not something that concerns me.
Again: I do not represent or misrepresent Mormonism. I ask that you not appropriate a highly specific, technical Christian term and apply it to your non-consubstantial triple godhead.
I don’t care what you think. I don’t see the word Trinity in that light you are trying to depict it. It is like the word God. To you God is a pure spirit without body, parts, or passions. To us He is a personage in human form with a physical body, parts, and passions. Your objections to our use of the word Trinity as we understand it would be like trying to monopolize the word “God” because you understand something different from what we mean by it. Of course we are not going to let you do that. We believe in God, as you claim to do; but we define it differently that you do. The same applies to the word Trinity. No difference.
zerinus