Why do Christian fundamentalists use the resurrection narrative of jesus to prove that eternal life is true?
“Wholeness” comes not from appreciating the teachings and example of a dead man, but by being transformed from within by a personal relationship with the resurrected and extremely alive Jesus. I think you’ve been reading theories proposed by those wishing to invalidate the Bible by claiming that the gospels were actually written centuries after Jesus lived by church leaders wanting to control and deceive the masses. The problem with that theory is that there are preserved fragments of all the the four gospels that have been authenticated from around 100 to 150 AD. The Resurrection was first spoken of by Mark about 30 to 40 years after the death of Jesus. The Acts of the Apostles was written about 60 years after Jesus died and tells how Jesus appeared to various people in various places over the next forty days. Hours after his resurrection, he appeared to two travelers on the road to Emmaus. To his assembled disciples he showed himself on the evening after his resurrection.[John 20:19]