Immorality of the Heathens is shown by Abimelech.

Genesis 26:6. So Isaac stayed in Gerar. 7. And the men of the place asked him about his wife and he said, “She is my sister.” For he was afraid to say, “She is my wife.” In case, he said, “The men of the place would kill me for Rebeccah,” because she was pleasant to look upon. 8. And it happened, when he had been there a long time that Abimelech king of the Philistines looked out at a window and saw and, behold, Isaac was caressing Rebeccah his wife. 9. And Abimelech called Isaac and said, “Look here! She surely is your wife, so why did you say, ‘She is my sister?’” And Isaac said to him, “Because I said, ‘Lest I die for her.’” 10. And Abimelech said, “What is this you have done to us? One of our people might lightly have lain with your wife and you would have brought guilt upon us.” 11. And Abimelech charged all his people saying, “Whoever touches this man or his wife will surely be put to death.”