2 Samuel 17:17-18

17Jonathan and Ahimaaz were staying at En Rogel. They did not go into the city because they did not want anyone to see them there. So a female servant would take messages to them. Then they would take the messages to King David.

18But this time a young man did see them. He told Absalom where they were. So they quickly left En Rogel and they went to a man's house in Bahurim. He had a well in his yard and they climbed down into it.