2 Samuel 16:15-22

15So Absalom and all the Israelites who were with him arrived in Jerusalem. Ahithophel came with him.

16David's friend, Hushai the Arkite, had also come there. He went to Absalom and he said to him, ‘May the king live for ever! May the king live for ever!’

17Absalom asked Hushai, ‘Why have you not been faithful to your friend David? Why did you not go with him?’

18Hushai replied, ‘No, I will serve you. You are the king that the Lord has chosen. And all these people and the men of Israel have chosen you too. So I will stay with you.

19I served your father when he was king. So now it is surely right for me to serve you, his son.’

20Then Absalom said to Ahithophel, ‘What do you think that we should do now? What is your advice?’

21Ahithophel answered, ‘Sleep with your father's slave wives that are here. He left them to take care of his palace. Then all the people in Israel will know that you have insulted your father. They will know that he must now hate you. That will help your own men to be strong.’

22So they put up a tent for Absalom on the roof of the palace. There he had sex with his father's slave wives, and all the Israelites could see him.