And the captain of the guard charged Joseph with them, and he served them: and they continued a season in ward.

Wesley's Notes

40:4 The captain of the guard, which was Potiphar, charged Joseph with them - Which intimates that he began now to be reconciled to him.

Jamieson-Fausset-Brown Bible Commentary

4. The captain of the guard charged Joseph with them-not the keeper, though he was most favorably disposed; but Potiphar himself, who, it would seem, was by this time satisfied of the perfect innocence of the young Hebrew; though, probably, to prevent the exposure of his family, he deemed it prudent to detain him in confinement (see Ps 37:5).

They continued a season in ward-literally, "days," how long, is uncertain; but as they were called to account on the king's birthday, it has been supposed that their offense had been committed on the preceding anniversary [Calvin].

Matthew Henry's Concise Commentary

40:1-19 It was not so much the prison that made the butler and baker sad, as their dreams. God has more ways than one to sadden the spirits. Joseph had compassion towards them. Let us be concerned for the sadness of our brethren's countenances. It is often a relief to those that are in trouble to be noticed. Also learn to look into the causes of our own sorrow. Is there a good reason? Is there not comfort sufficient to balance it, whatever it is? Why art thou cast down, O my soul? Joseph was careful to ascribe the glory to God. The chief butler's dream foretold his advancement. The chief baker's dream his death. It was not Joseph's fault that he brought the baker no better tidings. And thus ministers are but interpreters; they cannot make the thing otherwise than it is: if they deal faithfully, and their message prove unpleasing, it is not their fault. Joseph does not reflect upon his brethren that sold him; nor does he reflect on the wrong done him by his mistress and his master, but mildly states his own innocence. When we are called on to clear ourselves, we should carefully avoid, as much as may be, speaking ill of others. Let us be content to prove ourselves innocent, and not upbraid others with their guilt.

Matthew Henry's Whole Bible Commentary

Chapter 40

In this chapter things are working, though slowly, towards Joseph's advancement. I. Two of Pharaoh's servants are committed to prison, and there to Joseph's care, and so become witnesses of his extraordinary conduct (v. 1-4). II. They dreamed each of them a dream, which Joseph interpreted (v. 5-19), and the event verified the interpretation (v. 20-22), and so they became witnesses of his extraordinary skill. III. Joseph recommends his case to one of them, whose preferment he foresaw (v. 14, 15), but in vain (v. 23).

Verses 1-4

We should not have had this story of Pharaoh's butler and baker recorded in scripture if it had not been serviceable to Joseph's preferment. The world stands for the sake of the church, and is governed for its good. Observe, 1. Two of the great officers of Pharaoh's court, having offended the king, are committed to prison. Note, High places are slippery places; nothing more uncertain than the favour of princes. Those that make God's favour their happiness, and his service their business, will find him a better Master than Pharaoh was, and not so extreme to mark what they do amiss. Many conjectures there are concerning the offence of these servants of Pharaoh; some make it no less than an attempt to take away his life, others no more than the casual lighting of a fly into his cup and a little sand into his bread. Whatever it was, Providence by this means brought them into the prison where Joseph was. 2. The captain of the guard himself, who was Potiphar, charged Joseph with them (v. 4), which intimates that he began now to be reconciled to him, and perhaps to be convinced of his innocence, though he durst not release him for fear of disobliging his wife. John Baptist must lose his head, to please Herodias.