Years ago I recall hearing theories that the first five books of the Bible may not have been written by Moses, and that in fact they may have had several different writers. I know that the WTS's stance on this is that Moses did actually write these books. Reading my Bible this morning, I came across a couple of passages wich may indicate that Genesis did have at least two different authors.
Following the death of his father, Abram was commanded by his god to leave Haran. He took Lot, Sarai and all his slaves with him into Canaan, it the says at Gen. 12:8(NWT)
"Later he moved from there to the mountainous region to the east of Bethel and pitched his tent with Bethel on the west and Ai on th east..."
Later in Genesis, when talking about Jacob, Gen. 28:19(NWT)
"Further, he called the name of that place Bethel; but the fact is Luz was the city's name formerly."
This indicates to me that: obviously these lines had to be written by two different people, or if not; the person who wrote these two passages was so confused he couldn't recall what he had previously written. Abram couldn't have camped near Bethel, if his yet to be born grandson hadn't named it that yet.
Imagination is more important than Knowledge. Albert Einstein