Gen 39:21

“But why would it be surprising if Christ visits those in prison, since he himself mentioned being imprisoned in his own words, as it is written: "I was in prison, and you did not visit me." Where does divine mercy not penetrate? Joseph found such favor that he, who had been locked in prison, would keep the doors of the prison himself, granted the duty of jailer, and entrusted all the prisoners to his authority. Therefore, Joseph not only did not feel the prison, but also alleviated the suffering of the other prisoners.”

“You notice how even when Joseph encountered troubles he had no sense of distress; instead, the creative wisdom of God transformed all his distress. Just as a pearl reveals its peculiar beauty even if someone buries it in the mire, so too virtue, wherever you cast it, reveals its characteristic power, be it in servitude, in prison, in distress or in prosperity. So since, even when cast into prison, he won over the chief jailer and received from him control of everything there, let us see in this case as well how Joseph reveals the force of grace coming his way.”

“While his case was un-heard, Joseph was thrown into prison as if guilty of a crime, but the Lord did not desert him there. It is not a source of shame for the innocent when they are attacked by false charges and cast into prison because justice is crushed; the Lord visits his own even in prison, and therefore there is more help where the danger is greater. What wonder is it that Christ visits his own who are in prison, when he recalls that he has been locked up in prison in the person of his people? As you have it written: "I was in prison, and you did not come to me." Where does the divine mercy not penetrate? Joseph found such favor that he who had been shut up in prison rather guarded the bars of the prison.”