Was there a separation between the clergy and the laity in the first century Christian congregation?
There wasn’t really a “clergy” or “laity” in the first century. There were some other prophets who spread the words of Jesus, such as they understood them, and some learned people who decided to write down what they had heard of the man. Some of these writings were brought together in 326AD to form the book we now call the New Testament, under Emperor Constantine.