John Calvin Commentary Acts 7:10

"and delivered him out of all his afflictions, and gave him favor and wisdom before Pharaoh king of Egypt; and he made him governor over Egypt and all his house." — Acts 7:10 (ASV)

Stephen adds the means, because God gave him favor in the sight of Pharaoh. God could have delivered him by some other means, but His counsel had respect to something further: that Joseph, being ruler of the kingdom, might provide for his father and all his family. In these two words, favor and wisdom, there is the figure hypalloge. For the wisdom with which Joseph was endowed caused him to find favor, although I confess that they were two distinct benefits.

For, though Joseph was a faithful interpreter of dreams and excelled in divine wisdom, the proud tyrant would never have brought him to such great honor unless God had bent the mind of Pharaoh to a certain unusual love. Nevertheless, we must consider that order by which God is accustomed to bring him into favor.

Wisdom does not only signify the gift of prophecy in interpreting dreams, but also prudence in giving counsel, for Moses includes both. What Stephen reports about one man in this place is extended to all. For whatever aptitude and readiness men possess, it ought to be reckoned among the gifts of God, and specifically, His special gifts. And it is He who gives good success as it pleases Him, so that His gifts may be profitable for the purpose for which it seemed good to Him to give them. Therefore, although Joseph was made chief ruler of Egypt by Pharaoh, yet he was truly lifted up to such great honor by the hand of God.