A friend is attending a bible study at our church. They are studying the time line of Scripture, and was told Moses did not write the five books attributed to him. You might have heard the same liberal tripe yourself. What he was told bothered me all night, and so the next morning I sent this to him:
What is being alluded to (consciously or unconsciously) by those who teach that sort of thing is called the Graf-Wellhausen JEPD theory. You can find information about it here -- or you can do your own internet search: http://helpmewithbiblestudy.org/5system_moses/notes/dh6.aspx
Essentially, the theory was formulated by an uber-liberal Protestant scholar who taught that the Pentateuch is not of Mosaic origin. In so doing, the theory brings a shadow of doubt over the inerrancy and the infallibility of the Biblical record of Genesis through Deuteronomy.
Liberal scholars do the same thing with other OT and NT books, such as Isaiah, Daniel, Acts, and so forth. You can find all kinds of information -- pro and con -- through an easy internet search. But for starters, I refer you to the words of Jesus Himself, who clearly believed in the Mosaic origin of the Pentateuch. For example:
MT 19:7, quoting from DT 24:1-4
MT 22:24 quoting from DT 25:5
Mark 1:44 citing Leviticus 14:1-32
Mark 7: 9-11 citing Exodus 20:12 and Leviticus 20:9
Luke 24:44 citing the Pentateuch in general as the books of Moses
You can word search 'Moses' on Biblegateway.com for other references (when you click on any particular bible reference, click on the setting button upper right and check the box for cross references to make the search easier). You can also do a search for arguments against the Wellhausen school of biblical criticism. For example: http://www.leaderu.com/orgs/probe/docs/moses.html
Since Jesus accepted the Mosaic authorship of the Pentateuch, I will do the same. I hope this information will give some balance to what the class is being taught.