What does Genesis 49:28 mean?
Jacob's deathbed oracle about the future of his sons' descendants has concluded (Genesis 49:1–2). This verse clarifies that the prophecies were Jacob's "blessing" on each of his sons. Of course, not all these words were positive. In this context, the "blessing" of a patriarch is more about prediction than about good will. The intent is to show what will become of the "blessed" son, more so than to confer some benefit.In that sense, Jacob blessed some of his sons in the same way his father Isaac "blessed" his brother Esau (Genesis 27:38–40). Jacob delivered to each son exactly what was appropriate for each; that was not necessarily what those sons wanted.
This verse also marks the first time, in Genesis, where Jacob's sons and their offspring are described as the "twelve tribes of Israel" (Genesis 35:10–11).