Peter Pett's Commentary on the Bible
Genesis 38 - Introduction
JOSEPH
The Life of Joseph (Genesis 37:2 to Genesis 50:26)
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.