2 Samuel 17:16-21

16Now therefore send quickly and tell David, ‘Do not stay tonight at the fords of the wilderness, but by all means pass over, lest the king and all the people who are with him be swallowed up.’” 17Now Jonathan and Ahimaaz were waiting at En-rogel. A female servant was to go and tell them, and they were to go and tell King David, for they were not to be seen entering the city. 18But a young man saw them and told Absalom. So both of them went away quickly and came to the house of a man at Bahurim, who had a well in his courtyard. And they went down into it. 19And the woman took and spread a covering over the well’s mouth and scattered grain on it, and nothing was known of it. 20When Absalom’s servants came to the woman at the house, they said, “Where are Ahimaaz and Jonathan?” And the woman said to them, “They have gone over the brook of water.” And when they had sought and could not find them, they returned to Jerusalem. 21After they had gone, the men came up out of the well, and went and told King David. They said to David, “Arise, and go quickly over the water, for thus and so has Ahithophel counseled against you.”