Why would I care about any of those quotes that the OP made?
The trinity is just not possible regardless of what anyone back then said.
People say that Jesus is or was God but they forget that The reason Jesus came to the earth was to be a perfect sacrifice and a perfect priest to offer it.
To teach people that reason Jehovah gave Israel a lesson for 1500 years by having them build a temple and offer sacrifices to show how it would work and why they would need that. This is a much better lesson than what any of the apostles wrote.
God gave his son to be a sacrifice; a replacement for the bulls and goats. The sacrifice is or was not God since God was the one that accepted the sacrifice. And under no temple arrangement, whether preChristian, Christian or pagan has God ever acted as his own high priest.
Disproving the trinity is that simple.