2 Samuel 17:21-22

21Now it came to pass, after they had departed, that they came up out of the well and went and told King David, and said to David, “Arise and cross over the water quickly. For thus has Ahithophel advised against you.”

22So David and all the people who were with him arose and crossed over the Jordan. By morning light not one of them was left who had not gone over the Jordan.