Genesis 34:25

They slew all the males — Nothing can excuse this execrable villainy. It was true Shechem had wrought folly in Israel, in defiling Dinah: but it ought to have been considered how far Dinah herself had been accessary to it. Had Shechem abused her in her mother's tent, it had been another matter; but she went upon his ground, and struck the spark which began the fire. When we are severe upon the sinner, we ought to consider who was the tempter. It was true that Shechem had done ill; but he was endeavouring to atone for it, and was as honest and honourable afterwards as the case would admit. It was true that Shechem had done ill, but what was that to all the Shechemites? Doth one man sin, and must the innocent fall with the guilty? This was barbarous indeed. But that which above all aggravated the cruelty, was the most perfidious treachery that was in it. The Shechemites had submitted to their conditions, and had done that upon which they had promised to become one people with them. Yet they act as sworn enemies to those to whom they were lately become sworn friends, making as light of their covenant as they did of the laws of humanity. And these are the sons of Israel? Cursed be their anger, for it was fierce.