Here is the term "brother." Ach is used to indicate an ally in a business relationship. The Bible sees them as brothers in a business covenant. There is a relationship there, but "blood" is completely gone from the scene.
He did not even know them from Adam, and he called them his brethren! What was the connection? What was the relationship? It was an occupational relationship. They were all shepherds, but they were brothers. It was like belonging to a union, or being a member in a company.
