You don’t like the answers I gave you or the meaning of the verse in John’s Gospel which states the Trinity openly, so you just bear false witness. How appropriate in defending Mormonism.
I posted a passage from the Catholic Encyclopedia from an analysis of the development of the doctrine as you believe it and I did not see anything that implied anything other than it was a changing doctrine.
The source I posted says that Tertullian was the first to write the doctrine as in his treatise on the Trinity "Adversus Praxean", which is still the source used today.
You posted a rant where you said the word Trinity had been used earlier by Theophilis, but when I looked at his biography, it says that he used the word but was not using it to describe persons, and so was not a source for the Trinity.
You posted another rant accusing me of mischaracterizing your answers.
That still does not answer the question of how and why the doctrine changed.