2 Samuel 17:18-21

17:18 But a young man saw them on one occasion and informed Absalom. So the two of them quickly departed and went to the house of a man in Bahurim. There was a well in his courtyard, and they got down in it. 17:19 His wife then took the covering and spread it over the top of the well and scattered some grain over it. No one was aware of what she had done.

17:20 When the servants of Absalom approached the woman at her home, they asked, “Where are Ahimaaz and Jonathan?” The woman replied to them, “They crossed over the stream.” Absalom’s men searched but did not find them, so they returned to Jerusalem.

17:21 After the men had left, Ahimaaz and Jonathan climbed out of the well. Then they left and informed King David. They advised David, “Get up and cross the stream quickly, for Ahithophel has devised a plan to catch you.”