Commentaries:
Jamieson, Fausset, and Brown
Behold, I will make thee fruitful—This is a repetition of the covenant (Genesis 28:13-15; Genesis 35:12). Whether these words are to be viewed in a limited sense, as pointing to the many centuries during which the Jews were occupiers of the Holy Land, or whether the words bear a wider meaning and intimate that the scattered tribes of Israel are to be reinstated in the land of promise, as their "everlasting possession," are points that have not yet been satisfactorily determined.
God Almighty appeared unto me at Luz—The object of Jacob, in thus reverting to the memorable vision at Beth-el [Genesis 28:10-15] —one of the great landmarks in his history—was to point out the splendid promises in reserve for his posterity—to engage Joseph's interest and preserve his continued connection with the people of God, rather than with the Egyptians.
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