Genesis 39:1-3

Now Joseph had been taken down to Egypt; and Potiphar, an Egyptian officer of Pharaoh, the captain of the bodyguard, bought him from the Ishmaelites, who had taken him down there. The LORD was with Joseph, so he became a successful man. And he was in the house of his master, the Egyptian. Now his master saw that the LORD was with him and how the LORD caused all that he did to prosper in his hand.