Genesis 39:1-2, 8-9, 20-21

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 Ishmeelites, which had brought him down thither. And the LORD was with Joseph, and he was a prosperous man; and he was in the house of his master the Egyptian.

But he refused, and said unto his master's wife, Behold, my master wotteth not what is with me in the house, and he hath committed all that he hath to my hand; there is none greater in this house than I; neither hath he kept back any thing from me but thee, because thou art his wife: how then can I do this great wickedness, and sin against God?

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. But the LORD was with Joseph, and shewed him mercy, and gave him favour in the sight of the keeper of the prison.