Here is, I. Joseph bought (Gen 39:1), and he that bought him, whatever he gave for him, had a good bargain of him; it was better than the merchandise of silver. The Jews have a proverb, "If the world did not know the worth of good men, they would hedge them about with pearls." He was sold to an officer of Pharaoh, with whom he might get acquainted with public persons and public business, and so be fitted for the preferment for which he was designed. Note, 1. What God intends men for he will be sure, some way or other, to qualify them for. 2. Providence is to be acknowledged in the disposal even of poor servants and in their settlements, and therein may perhaps be working towards something great and important.
II. Joseph blessed, wonderfully blessed, even in the house of his servitude.
1. God prospered him, Gen 39:2, Gen 39:3. Perhaps the affairs of Potiphar's family had remarkably gone backward before; but, upon Joseph's coming into it, a discernible turn was given to them, and the face and posture of them altered on a sudden. Though, at first, we may suppose that his hand was put to the meanest services, even in those appeared his ingenuity and industry; a particular blessing of Heaven attended him, which, as he rose in his employment, became more and more discernible. Note, (1.) Those that have wisdom and grace have that which cannot be taken away from them, whatever else they are robbed of. Joseph's brethren had stripped him of his coat of many colours, but they could not strip him of his virtue and prudence. (2.) Those that can separate us from all our friends, yet cannot deprive us of the gracious presence of our God. When Joseph had none of all his relations with him, he had his God with him, even in the house of the Egyptian. Joseph was separated from his brethren, but not from his God; banished from his father's house, but the Lord was with him, and this comforted him. (3.) It is God's presence with us that makes all we do prosperous. Those that would prosper must therefore make God their friend; and those that do prosper must therefore give God the praise.
2. His master preferred him, by degrees made him steward of his household, Gen 39:4. Note, (1.) Industry and honesty are the surest and safest way both of rising and thriving: Seest thou a man prudent, and faithful, and diligent in his business? He shall stand before kings at length, and not always before mean men. (2.) It is the wisdom of those that are in any sort of authority to countenance and employ those with whom it appears that the presence of God is, Psa 101:6. Potiphar knew what he did when he put all into the hands of Joseph; for he knew it would prosper better there than in his own hand. (3.) He that is faithful in a few things stand fair for being made ruler over many things, Mat 25:21. Christ goes by this rule with his servants. (4.) It is a great ease to a master to have those employed under him that are trusty. Potiphar was so well satisfied with Joseph's conduct that he knew not aught he had, save the bread which he did eat, Gen 39:6. The servant had all the care and trouble of the estate; the master had only the enjoyment of it: an example not to be imitated by any master, unless he could be sure that he had one in all respects like Joseph for a servant.
3. God favoured his master for his sake (Gen 39:5): He blessed the Egyptian's house, though he was an Egyptian, a stranger to the true God, for Joseph's sake; and he himself, like Laban, soon learned it by experience, Gen 30:27. Note, (1.) Good men are the blessings of the places where they live; even good servants may be so, though mean, and lightly esteemed. (2.) The prosperity of the wicked is, one way or other, for the sake of the godly. Here was a wicked family blessed for the sake of one good servant in it.

He made him overseer - הפקיד hiphkid, from פקד pakad, to visit, take care of, superintend; the same as επισκοπος, overseer or bishop, among the Greeks. This is the term by which the Septuagint often express the meaning of the original.

And it came to pass from the time that he had made him overseer in his house, and over all that he had,.... How long he was in this office is not certain; there must be some time for the following observation; and during all the time he was in it, it was easily discerned:

that the Lord blessed the Egyptian's house for Joseph's sake; that is, much more than before; everything under his hands succeeded before, but now much more abundantly; Potiphar's family was blessed with health, his substance increased, he grew rich and wealthy, and abounded with all good things:

and the blessing of the Lord was upon all that he had in the house,

and in the field; his domestic affairs prospered, his fields brought forth plentifully, his cattle were fruitful and stood well; every thing belonging to him within doors and without happily succeeded, through the blessing of God upon it, and all for Joseph's sake.

the Lord blessed the Egyptian's house for Joseph's sake, &c.--It might be--it probably was--that a special, a miraculous blessing was poured out on a youth who so faithfully and zealously served God amid all the disadvantages of his place. But it may be useful to remark that such a blessing usually follows in the ordinary course of things; and the most worldly, unprincipled masters always admire and respect religion in a servant when they see that profession supported by conscientious principle and a consistent life.

made him overseer in his house--We do not know in what capacity Joseph entered into the service of Potiphar; but the observant eye of his master soon discovered his superior qualities and made him his chief, his confidential servant (compare Eph 6:7; Col 3:23). The advancement of domestic slaves is not uncommon, and it is considered a great disgrace not to raise one who has been a year or two in the family. But this extraordinary advancement of Joseph was the doing of the Lord, though on the part of Potiphar it was the consequence of observing the astonishing prosperity that attended him in all that he did.