John Calvin's Bible Commentary
Genesis 37:18
18.And when they saw him afar off. Here again Moses, so far from sparing the fame of his own family by adulation, brands its chiefs with a mark of eternal infamy, and exposes them to the hatred and execration of all nations. If, at any time, among heathens, a brother murdered his brother, such impiety was treated with the utmost severity in tragedies, that it might not pass into an example for imitation. But in profane history no such thing is found, as that nine brethren should conspire together for the destruction of an innocent youth, and, like wild beasts, should pounce upon him with bloody hands. Therefore a horrible, and even diabolical fury, took possession of the sons of Jacob, when, having cast aside the sense of nature, they were thus prepared cruelly to rage against their own blood.
But, in addition to this wickedness, Moses condemns their impious contempt of God, Behold this master of dreams. For why do they insult the unhappy youth, except because he had been called by the celestial oracle to an unexpected dignity? Besides, in this manner, they themselves proclaim their own baseness more publicly than any one could do, who should purposely undertake severely to chastise them. They confess that the cause why they persecuted their brother was his having dreamed; as if truly this ass an inexpiable offense; but if they are indignant at his dreams, why do they not rather wage war with God? For Joseph deemed it necessary to receive, as a precious deposit, what had been divinely revealed unto him. But because they did not dare directly to assail God, they wrap themselves in clouds, that, losing sight of God, they may vent their fury against their brother. If such blindness seized upon the patriarchs, what shall become of the reprobates, whom obstinate malice drives along, so that they do not hesitate to resist God even to the last? And we see that they willingly disturb and excite themselves, as often as they are offended with the threatenings and chastisements of God, and rise up against his ministers for the sake of taking vengeance. The same thing, indeed, would at times happen to us all, unless God should put on his bridle to render us submissive. With respect to Joseph, the special favor of God was manifested to him, and he was raised to the highest dignity; but only in a dream, which is ridiculed by the wicked scorn of his brethren. To this is also added a conspiracy, so that he narrowly escaped death. Thus the promise of God, which had exalted him to honor, almost plunges him into the grave. We, also, who have received the gratuitous adoption of God amidst many sorrows, experience the same thing. For, from the time that Christ gathers us into his flock, God permits us to be cast down in various ways, so that we seem nearer hell than heaven. Therefore, let the example of Joseph be fixed in our minds, that we be not disquieted when many crosses spring forth to us from the root of God’s favor. For I have before showed, and the thing itself clearly testifies, that in Joseph was adumbrated, what was afterwards more fully exhibited in Christ, the Head of the Church, in order that each member may form itself to the imitation of his example.