The keeper of the prison paid no attention to anything that was in Joseph’s charge, because the LORD was with him. And whatever he did, the LORD made it succeed.
Here is, 1. Joseph wronged by his master. He believed the accusation, and either Joseph durst not make his defence by telling the truth, as it would reflect too much upon his mistress, or his master would not hear it, or would not believe it, and there is no remedy, he is condemned to perpetual imprisonment, Gen 39:19, Gen 39:20.
Commenting on Genesis 39:19-23
The keeper of the prison looked not to anything that was under his hand,.... Under the hand of Joseph; he did not inquire into and examine his conduct and management of things; he took no account of what was in his hands, nor required any of him; so satisfied was he with what he did, and had such an opinion of his prudence and faithfulness.
Gen 39:21-23 In the prison itself Jehovah was with Joseph, procuring him favour in the eyes of the governor of the prison, so that he entrusted all the prisoners to his care, leaving everything that they had to do, to be done through him, and not troubling himself about anything that was in his hand, i.e., was committed to him, because Jehovah made all that he did to prosper.
Commenting on Genesis 39:21-23