Genesis 41:32-37
32 And for that the dream was doubled unto Pharaoh twice; it is because the thing is established by God, and God will shortly bring it to pass.
33 Now therefore let Pharaoh look out a man discreet and wise, and set him over the land of Egypt.
34 Let Pharaoh do this, and let him appoint officers over the land, and take up the fifth part of the land of Egypt in the seven plenteous years.
35 And let them gather all the food of those good years that come, and lay up corn under the hand of Pharaoh, and let them keep food in the cities.
36 And that food shall be for store to the land against the seven years of famine, which shall be in the land of Egypt; that the land perish not through the famine.
37 And the thing was good in the eyes of Pharaoh, and in the eyes of all his servants.
And for that the dream was doubled. Joseph does not mean to say, that what God may have declared but once, is mutable: but he would prevent Pharaoh’s confidence respecting the event revealed, from being shaken. For since God pronounces nothing but from his own fixed and steadfast purpose, it is enough that he should have spoken once. But our dulness and inconstancy cause him to repeat the same thing the more frequently, in order that what he has certainly decreed, may be fixed in our hearts; otherwise, as our disposition is variable, so, what we have once heard from his mouth, is tossed up and down by us, until it entirely escapes our memory. Moreover, Joseph not only commemorates the stability of the heavenly decree, but also declares that what God has determined to do, is near at hand, lest Pharaoh himself should slumber in the confident expectation of longer delay. For though we confess that the judgments of God are always hanging over our heads, yet unless we are stimulated by the thought of their speedy approach, we are but slightly affected with anxiety and fear respecting them.
Now therefore let Pharaoh look out a man. Joseph does more than he had been asked to do; for he is not merely the interpreter of the dream; but, as fulfilling the office of a prophet, he adds instruction and counsel. For we know that the true and lawful prophets of God do not barely predict what will happen in future; but propose remedies for impending evils. Therefore Joseph, after he had uttered a prophecy of the changes which would take place in fourteen years, now teaches what ought to be done; and exhorts Pharaoh to be vigilant in the discharge of his duty. And one of the marks by which God always distinguished his own prophets from false prognosticators, was to endue them with the power of teaching and exhorting, that they might not uselessly predict future events. Let us grant that the predictions of Apollo, and of all the magicians were true, and were not entangled with ambiguous expressions; yet whither did they tend, but either to drive men headlong in perverse confidence, or to plunge them into despair? A very different method of prophesying was divinely prescribed, which would form men to piety, would lead them to repentance, and would excite them to prayer when oppressed with fear. Moreover, because the prophecy of which mention is here made, was published only for the temporal advantage of this fleeting life, Joseph proceeds no further than to show the king for what purpose the dream had been sent to him; as if he had said, “Be not sorry on account of this revelation; accept this advantage from it, that thou mayest succour the poverty of thy kingdom.” However, there is no doubt that God guided his tongue, in order that Pharaoh might entrust him with this office. For he does not craftily insinuate himself into the king’s favour, nor abuse the gift of revelation to his private gain: but, what had been divinely ordained was brought to its proper issue without his knowledge; namely, that the famishing house of Jacob should find unexpected sustenance.
Under the hand of Pharaoh. Whereas prosperity so intoxicates men, that the greater part make no provision for themselves against the future, but absorb the present abundance by intemperance; Joseph advises the king to take care that the country may have its produce laid up in store. Besides, the common people would also form themselves to habits of frugality, when they understood that this great quantity of corn was not collected in vain by the king, but that a remedy was hereby sought for some unwonted calamity. In short, because luxury generally prevails in prosperity, and wastes the blessings of God, the bridle of authority was necessary. This is the reason why Joseph directed that garners should be established under the power of the king, and that corn should be gathered into them. He concludes at length, that the dream was useful, although at first sight, it would seem sad and inauspicious: because, immediately after the wound had been shown, the means of cure were suggested.
— John Calvin (1509-1564)