There is nothing wrong with the concept of Trinity. Christians borrowed the concept from Hindu Trinity, which also depicts three Gods ultimately uniting into one God. Indeed, many of the smaller religions also have the concept of Trinity. quote
I have, over the years, seen you add in to a thread that the Christians borrowed the concept from the Hindu's . I believe someone on here stated some facts regarding that (perhaps Dexter Sinister) and I looked that up today. What I read is that while some people have stated this to be a fact, it is in fact, no fact at all. The Christians did not steal this from the Hindu's.
There is no way to establish these things beyond any doubt, so you are entitled to hold any opinion you like, nobody can prove you wrong. All we can do is make educated guesses.
However, the concept of Trinity is very prominent in Hinduism, it is absent in other ancient religions, Judaism or Zoroastrianism. So we have two possibilities here. Either Christians borrowed the concept from Hinduism or by a coincidence they came up with a concept very similar to that in Hinduism.
I prefer to believe the first possibility. The two Trinities are indeed very similar, they work the same way. The only prominent difference is that in Hindu Trinity, each God has a specific purpose. Brahma is the Creator, Vishnu looks after the world, Mahesh is the Destroyer. In Christianity, the three Gods don’t really have distinct responsibilities, their function s somewhat fuzzy. Thus I have never been able to figure out what exactly is the function of Holy Ghost.
So I think it is too much of a coincidence, I think probability is very high that Christians borrowed the concept from Hinduism. Incidentally, the second deity in Christian Trinity, Son (or Jesus) can be linked to the second deity in the Hindu Trinity, Vishnu.