Genesis 40:4
And the captain of the guard charged Joseph with them, and he served them; and they continued a season in custody.
Genesis 37:36
And the Midianites sold him into Egypt to Potiphar, an officer of Pharaoh's, and captain of the guard.
Genesis 39:1
And Joseph was brought down to Egypt: and Potiphar, an officer of Pharaoh, captain of the guard, an Egyptian, bought him of the hands of the Ishmaelites, who had brought him down thither.
Genesis 39:21-23
But the LORD was with Joseph, and showed him mercy, and gave him favor in the sight of the keeper of the prison.
Psalm 37:5
Commit thy way to the LORD; trust also in him; and he will bring it to pass.