2 Samuel 15:34

15:34 But you will be able to counter the advice of Ahithophel if you go back to the city and say to Absalom, ‘I will be your servant, O king! Previously I was your father’s servant, and now I will be your servant.’

2 Samuel 17:23

17:23 When Ahithophel realized that his advice had not been followed, he saddled his donkey and returned to his house in his hometown. After setting his household in order, he hanged himself. So he died and was buried in the grave of his father.

2 Samuel 20:22

20:22 Then the woman went to all the people with her wise advice and they cut off Sheba’s head and threw it out to Joab. Joab blew the trumpet, and his men dispersed from the city, each going to his own home. Joab returned to the king in Jerusalem.