Answer:
Jesus
Step-by-step explanation:
"The Bible's origin is both human and divine—not just from God and not just from humans. The Bible's narratives, poems, histories, letters, prophecies, and other writings come from a profound collaboration between humanity and God."
To start Christianity is ' a religion based on the life and teachings of Jesus of Nazareth ' and although certain people spread the word of the Bible the teachings are from God (Jesus). God gave the teachings and knowledge to people who may have been a disciple or roman who shared the knowledge but were 'tellers' not 'teachers'.
In short, Christianity is based upon the teachings of Jesus.