2 Samuel 17:15-22

Then Hushai said to Zadok and Abiathar the priests, “This is the advice that Ahithophel gave to Absalom and the elders of Israel, and this is the advice that I have given. Now then, send word quickly and tell David, ‘Do not spend the night at the fords [on the west side of the Jordan] in the wilderness, but by all means cross over [to the east side of the river], or else the king and all the people with him will be destroyed [if Ahithophel is allowed by Absalom to lead an attack].’ ” Now Jonathan and Ahimaaz [the priests’ sons] were staying at En-rogel, and a maidservant [appearing to go for water] would go and tell them [what was happening], and they would go [secretly] and inform King David; for they could not [allow themselves to] be seen coming into the city [of Jerusalem]. But a boy saw them and told Absalom; so the two of them left quickly and came to the house of a man in Bahurim, who had a well in his courtyard, and [with his permission] they went down into it. And the woman [of the house] took a covering and spread it over the mouth of the well and scattered grain on it; so nothing was discovered. Then Absalom’s servants came to the woman at the house and asked, “Where are Ahimaaz and Jonathan?” And the woman said to them, “They have crossed over the brook.” When they searched and could not find them, they returned to Jerusalem. After they left, Jonathan and Ahimaaz came up out of the well and went and informed King David, and said to David, “Arise and cross over the Jordan River quickly, for Ahithophel has advised [an attack] against you.” Then David and all the people who were with him departed and crossed over the Jordan. By daybreak, not even one was left who had not crossed the Jordan.