Genesis

And it came to pass, when he was come near to enter into Egypt, that he said unto Sarai his wife, Behold now, I know that thou art a fair woman to look upon:

And he left all that he had in Joseph’s hand; and he knew not ought he had, save the bread which he did eat. And Joseph was a goodly person, and well favoured.

He suffered no man to do them wrong: yea, he reproved kings for their sakes;

And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat.

But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.