John Wesley on Genesis 49:27

Benjamin shall ravin as a wolf - It is plain, Jacob was guided in what he said by a spirit of prophecy, and not by natural affection, else he would have spoken with more tenderness of his beloved son Benjamin, concerning whom he only foretells, that his posterity should be a warlike tribe, strong and daring, and that they should enrich themselves with the spoil of their enemies, that they should be active in the world, and a tribe as much feared by their neighbours as any other; in the morning he shall devour the prey which he seized and divided over night.