Someone was trying to tell me that there is no historical evidence that Abraham was a real person besides bible, and that Abraham is not a real person but just a fictional character. He said the origin of the character Abraham is traced back to ancient Indian legend. I can’t remember everything he said but it was an disturbing experience for me (as Christians are expected to believe that Abraham was a real person).
Also, lot of other modern historicians says that Abraham is not a real person. What is the Church’s defender against these claims? What supports that Abraham was real?