2 Samuel 17:22-24 King James Version (KJV)
22 Then David arose, and all the people that were with him, and they passed over Jordan: by the morning light there lacked not one of them that was not gone over Jordan.
23 And when Ahithophel saw that his counsel was not followed, he saddled his ass, and arose, and gat him home to his house, to his city, and put his household in order, and hanged himself, and died, and was buried in the sepulchre of his father.
24 Then David came to Mahanaim. And Absalom passed over Jordan, he and all the men of Israel with him.