My view of the first two centuries does not differ in substance from anything that you could read in any history book. There were several competing forms of Christianity in the first few centuries. I do not mean to suggest that all of them were saved, to us the terminology scripture uses and we use as well, however I recognize that much of the information we get from this era are from groups that are opposed to them. In other words, its difficult to get an accurate portrayal of someone’s beliefs from someone opposed to them. Take for example a group that existed later called the Paulicians. For hundreds of years, the Catholic Church and their historians defined them. Only when a document from the Paulicians themselves was uncovered and able to be examined by scholars did we learn that much of what we thought we knew (ie what the Catholic Encyclopedia of 1909 says), is in fact inaccurate. I can only assume the same for other groups.
You are right and I am wrong.
The schism between Oriental Orthodoxy and the rest of the CC occurred in the 5th century, which meant that there were 2 churches prior to the east west Were there any other schism prior to the 5th century, or was there just one church?
There was not one church. Not at all. Take for example the Montanists. While there is a great deal of misinformation on the internet, they were baptized using a Trinitarian formula etc. Now, the internet is not interested in providing objective information but we digress…
Go to any university, find their online library in which you can access scholarly journals like a dissertation database like ProQuest or access a journal research portal…type in Montanists or some of the other groups from the first 500 years.
Via my private judgment - correct or incorrect?
You will ultimately, everyone does, use your private judgement to ascertain whether or not you accept the teachings of the Bible, but that is not the method that we learn from the Bible to instruct others in the faith. Many other posts have cited relevent passages…No need to repeat them…or I can I suppose…