Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[20] NOW these brethren rejoiced as soon as they saw their brother coming to them, not indeed as at the presence of a near relation, or as at the presence of one sent by their father, but as at the presence of an enemy, and one that by Divine Providence was delivered into their hands; and they already resolved to kill him, and not let slip the opportunity that lay before them. But when Reubel, the eldest of them, saw them thus disposed, and that they had agreed together to execute their purpose, he tried to restrain them, showing them the heinous enterprise they were going about, and the horrid nature of it; that this action would appear wicked in the sight of God, and impious before men, even though they should kill one not related to them; but much more flagitious and detestable to appear to have slain their own brother, by which act the father must be treated unjustly in the son's slaughter, and the mother ¹ also be in perplexity while she laments that her son is taken away from her, and this not in a natural way neither. So he entreated them to have a regard to their own consciences, and wisely to consider what mischief would betide them upon the death of so good a child, and their youngest brother; that they would also fear God, who was already both a spectator and a witness of the designs they had against their brother; that he would love them if they abstained from this act, and yielded to repentance and amendment; but in case they proceeded to do the fact, all sorts of punishments would overtake them from God for this murder of their brother, since they polluted his providence, which was every where present, and which did not overlook what was done, either in deserts or in cities; for wheresoever a man is, there ought he to suppose that God is also. He told them further, that their consciences would be their enemies, if they attempted to go through so wicked an enterprise, which they can never avoid, whether it be a good conscience; or whether it be such a one as they will have within them when once they have killed their brother. He also added this besides to what he had before said, that it was not a righteous thing to kill a brother, though he had injured them; that it is a good thing to forget the actions of such near friends, even in things wherein they might seem to have offended; but that they were going to kill Joseph, who had been guilty of nothing that was ill towards them, in whose case the infirmity of his small age should rather procure him mercy, and move them to unite together in the care of his preservation. That the cause of killing him made the act itself much worse, while they determined to take him off out of envy at his future prosperity, an equal share of which they would naturally partake while he enjoyed it, since they were to him not strangers, but the nearest relations, for they might reckon upon what God bestowed upon Joseph as their own; and that it was fit for them to believe, that the anger of God would for this cause be more severe upon them, if they slew him who was judged by God to be worthy of that prosperity which was to be hoped for; and while, by murdering him, they made it impossible for God to bestow it upon him.