What did Moses become after spending 40 years in Egyptian luxury?
Moses became a shepherd, tending sheep, after spending forty years in Egypt's pomp, circumstance, wealth, and luxury. His life moved from Egyptian prestige to the lowly work of caring for smelly sheep, a striking reversal that the context highlights when asking why this happened.
Les explains that this is where Moses ends up: a shepherd with those smelly old sheep after having been forty years in the pomp and circumstance, wealth, and luxury of Egypt. The surrounding context shows Joseph preparing Jacob's family to dwell in Goshen by telling Pharaoh they are cattlemen, not shepherds, because a shepherd is an abomination in the eyes of an Egyptian. Les compares this to the old West cattlemen and says God often uses sheep as an example in Scripture. Pharaoh considered anyone who tended sheep an abomination, and Moses ends up in that very role.