Genesis 39:7-9

7 It happened after these things, that his master's wife cast her eyes on Joseph; and she said, "Lie with me."

8 But he refused, and said to his master's wife, "Behold, my master doesn't know what is with me in the house, and he has put all that he has into my hand.  9 He isn't greater in this house than I, neither has he kept back anything from me but you, because you are his wife. How then can I do this great wickedness, and sin against God?"