Could the Sermon on the Mount have been a non or pre-Christian text incorporated by Christians and attributed to Jesus?

Aren’t the Passion stories of various savior cults a revived version of the Chaoskampf myth? 

Would you share some of your thoughts about the book/prophet Amos?

Can you discuss Christian views on reincarnation? Is there a precedent for it in the early church or even the New Testament itself?

Why are the disciples denigrated as lower class dullards in the gospels?

What do you think of the theory that Rabbi Akiva rewrote the OT?