If I were to write my original post again I would try to use a word like "fashioned" instead of created. I use created for the act of the incarnation because that is the way we use the word in everyday language.
When one uses one or more preexistent things to fashion something that heretofore did not exist in it's present form - we say that it was created. That is exactly as it was with the incarnation. Deity and humanity were fashioned together in such a way that a new thing came into being.
It is indeed tricky to talk about theology in general. That's the reason that theologians coin special words (like Trinity) so as to alleviate the necessity of cobbling together several paragraphs of explanation when a certain concept is being discussed.
If there is a common word used for those explanations, it can be used as a sort of short cut.
Of course the rub is that not everyone agrees on the explanations that the word is meant to short cut.
As long as I'm on a role - here is a definition for the Trinity:
"I believe in the one true God beside whom there is no other. The one true God exists eternally as 3 distinct persons - each person possessing within Himself all of the attributes necessary that He might be correctly referred to as the one true God."
You and I might think that a fairly good statement describing the Trinity in general. If we agreed with that statement we could hold a conversation and use that short hand word "Trinity" without misunderstandings.
But if I have a conversation with a Mormon or a J.W. or a Moslem or even a "oneness" Pentecostal (like T.D. Jakes) - and I said Trinity - we would eventually find ourselves arguing about what that meant.
I've found out to my dismay here in the forum that theological words used here don't mean the same things to each and every person on these threads.
Without opening a can of worms - discussions about Calvinism and Arminianism and Protestantism and Catholicism or Eastern Orthodoxy come to mind most readily.
And of course there seems to be views of what it takes to be "saved" that are often divergent. When that happens it is almost impossible to have a civil conversation for long.