Matthew Henry on Genesis 49:5-7
These were next in age to Reuben, and they also had been a grief and shame to Jacob, when they treacherously and barbarously destroyed the Shechemites, which he here remembers against them. Children should be afraid of incurring their parents' just displeasure, lest they fare the worse for it long afterwards, and, when they would inherit the blessing, be rejected. Observe, 1. The character of Simeon and Levi: they were brethren in disposition; but, unlike their father, they were passionate and revengeful, fierce and uncontrollable; their swords, which should have been only weapons of defence, were (as the margin reads it, Gen 49:5) weapons of violence, to do wrong to others, not to save them…
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