Genesis 49:1

And Jacob called upon his sons
Who either were near at hand, and within call at the time Joseph came to visit him, or if at a distance, and at another time, he sent a messenger or messengers to them to come unto him: and said, gather yourselves together;
his will was, that they should attend him all together at the same time, that he might deliver what he had to say to them in the hearing of them all; for what he after declares was not said to them singly and alone, but when they were all before him: that I may tell you that which shall befall you in the last days;
not their persons merely, but their posterity chiefly, from that time forward to the coming of the Messiah, who is spoken of in this prophecy, and the time of his coming; some things are said relating to temporals, others to spirituals; some are blessings or prophecies of good things to them, others curses, or foretell evil, but all are predictions delivered out by Jacob under a spirit of prophecy; some things had their accomplishment when the tribes of Israel were placed in the land of Canaan, others in the times of the judges, and in later times; and some in the times of the Messiah, to which this prophecy reaches, whose coming was in the last days, ( Hebrews 1:1 ) and Nachmanides says, according to the sense of all their writers, the last days here are the days of the Messiah; and in an ancient writing of the Jews it is said ^F24, that Jacob called his sons, because he had a mind to reveal the end of the Messiah, i.e. the time of his coming; and Abraham Seba ^F25 observes, that this section is the seal and key of the whole law, and of all the prophets prophesied of, unto the days of the Messiah.