These statements made by Jacob to his sons are probably prophecies. These prophecies are concerned with the descendants of each of Jacob's sons who would become the twelve tribes of Israel. (See: [[rc://en/tw/dict/bible/kt/prophet]])
This prophecy indicates Judah will be the ruling tribe of Israel. The future kings of Israel all come from the tribe of Judah. (See: [[rc://en/ta/man/jit/figs-explicit]])