Peter Pett's Commentary on the Bible
Genesis 37 - Introduction
JOSEPH
The Life of Joseph (Gen 37:2 b - 51:26)
In this section we have the life of Joseph from beginning to end. It quite clearly bears within it the stamp of a deep knowledge of Egypt, its customs and its background, and could not have been written by anyone who did not have that deep knowledge, and who was not familiar with things at court. The correct technical terms are used for court officials. And the whole of Joseph's stay in Egypt is clearly written against an Egyptian background without the artificiality which would appear if it was written by an outsider.
The Betrayal and Selling into Egypt of Joseph (Genesis 37:2)
We note here a remarkable change in the narrative. Up to this point each section has been relatively brief. Covenant narrative has followed covenant narrative. This was because the records were written down in order to preserve the words of the covenant which were then, as regularly in the ancient world, put in the context of the history behind them. Thus up to Genesis 37:2 a we continually have typical examples of covenant records.
But now all changes. Instead of short sections we have a flowing narrative that goes on and on, portraying the life of Joseph. And this remarkable fact is exactly what we would expect if these records were written in the first part of the 2nd Millennium BC. For Joseph was a high official in Egypt where papyrus (a writing surface made from the papyrus plant) was plentiful and the recording of information about such officials was common practise. A good case could indeed be made for suggesting that it was at this time that the earlier written covenant records were taken and compiled into one narrative to provide background history to this great man.