2 Samuel 17:15-17

15Hushai told Zadok and Abiathar, the priests, what Ahithophel had said to Absalom and the elders of Israel and what he himself had advised instead.

16“Quick!” he told them. “Find David and urge him not to stay at the shallows of the Jordan River tonight. He must go across at once into the wilderness beyond. Otherwise he will die and his entire army with him.”

17Jonathan and Ahimaaz had been staying at En-rogel so as not to be seen entering and leaving the city. Arrangements had been made for a servant girl to bring them the message they were to take to King David.