Joseph Bound In Prison

Gen 39:20 And Joseph's master took him, and put him into the prison, a place where the king's prisoners were bound: and he was there in the prison.
Gen 39:21 But the LORD was with Joseph, and shewed him mercy, and gave him favour in the sight of the keeper of the prison.
Gen 39:22 And the keeper of the prison committed to Joseph's hand all the prisoners that were in the prison; and whatsoever they did there, he was the doer of it.
Gen 39:23 The keeper of the prison looked not to any thing that was under his hand; because the LORD was with him, and that which he did, the LORD made it to prosper.