The "prophesies" you mention were historical events that had already occurred by the time of their writing in around 500 bc.
Ah, a JEDP theorist. The JEDP is wishful thinking, and Welhausen's argument that writing hadn't been invented when Moses was alive has been blown out of the water. Most of the reasoning behind placing the writing at 500, instead of the previously accepted dates is because the people claiming the dates didn't believe in prophecy. Therefore, they HAD to give the Pentateuch a date after the prophecies had been fulfilled.
Then they discovered Sumerian records 5,000 years old. It was obvious the Bible's oldest stories were so similar to these most ancient written records that they had the same source, or were simply alternate versions of the same stories, most likely written down at the earliest possible times by Sumerians ~ they, after all, invented writing.
The ancient Hebrews had very good contact with Babylon to the East, Assyria to the North and Egypt to the South, and writing had already been in full bloom in those areas for many centuries before 500 BCE. It's beyond the realm of conjecture to believe that all of the surrounding and neighboring civilizations had written records with the Jews still sitting around working out a primitive oral tradition.
BWA HAW HAW HAW HAW HAW HAW
I dare your to Read "Evidence that Demands a Verdict" by Josh McDowell. That is if you would actually like to know what you are talking about.
I just thought it was good timing to post this with the Popes death. Usually I say I can spell and it's my typing that is lacking. "Prophecies"