“And David said unto all his servants that were with him at Jerusalem, Arise, and let us flee; for we shall not else escape from Absalom: make speed to depart, lest he overtake us suddenly, and bring evil upon us, and smite the city with the edge of the sword.”
King James Version (KJV)
15:14 Let us flee - For though the fort of Zion was strong, and he might have defended himself there; yet he had not laid in provisions for a long siege; and, if he had been once besieged there, Absalom would have got speedy possession of his whole kingdom; whereas if he marched abroad, he might raise a considerable army for his defence. Besides, the greatest part of Jerusalem could not be well defended against him.