If there is a " paradigm of Christianity", a pattern; why are there 30,000+ groups calling themselves "Christian"?
because they follow the paradigm. They have a concept of God and that concept is largely contributed to buy the Bible not the Quran not the Torah. They are distinctively not Jewish they are distinctively not Hindu, they are distinctively not atheist.
That's a paradigm.
That question brings up another one- Who is a True Christian?
to wit I would point out the concept of a true Christian and an untrue Christian is an appeal to purity or a no true Scotsman fallacy.
So I don't operate within realms of true Christian or sort of Christian. If you believe Jesus is the messiah and you worship the God in the Bible that equates to being Christian.
If the 2.2 billion people who call themselves Christian can't agree on the definition, how is a person on the outside to understand?
don't worry about the minutiae. Focus on the fundamentals, follows the Bible believes Jesus is the messiah the God in the Bible.
Muslims worship the God in the Bible and they believe Jesus was a prophet but they do not believe he was the Messiah so therefore Muslims can't be Christian. Jews follow the Torah which is part of the Bible, they may believe Jesus was a prophet they made believe he was a heretic they do not believe he is the messiah so therefore they are not Christian fundamentally.
Jehovah's witnesses, Catholics, Assembly of God Pentecostal non-denominational Christians Lutheran's Presbyterians Mormons Greek Orthodox, Eastern Orthodox, Coptic Christians, Baptists, the episcopalians or Church of England, they all follow the Bible to some degree doctora not the talmud not the Quran, not any Buddhist religious text or Hindu religious text.
They fit the paradigm of Christianity.
If you ever want to know if someone is Christian I would suggest find out if they believe Jesus is the messiah and if they use or have a Bible.
That's the pattern that's the paradigm.