However, it's quite obvious that both stories have Sumerian and Egyptian origins and were written down in hieroglyphics and syllabries many centuries before any such thing as a Semitic alphabet existed.
No doubt there was a priestly or shamanistic oral tradition that ran alongside the texts, but you can pick out those commentaries even in English translations.
If it were otherwise we'd have to ask why Abram and Moses figure so prominantly.
I think that FAITH has something to do with it!