Genesis 39:1
Meanwhile, Joseph had been taken down to Egypt, where an Egyptian named Potiphar, an officer of Pharaoh and captain of the guard, bought him from the Ishmaelites who had taken him there.

Genesis 39:20
So Joseph's master took him and had him thrown into the prison where the king's prisoners were confined. While Joseph was there in the prison,

Genesis 39:22
who put all those held in the prison under Joseph's authority, so that he was responsible for all that was done there.

Genesis 40:4
The captain of the guard assigned them to Joseph, and he became their personal attendant. After they had been in custody for some time,

Genesis 41:10
Pharaoh was once angry with his servants, and he put me and the chief baker in the custody of the captain of the guard.