271. This may refer either to the river Jordan or to some other river or stream in that region. Saul wanted to take the Israelite army across the river. He was aware, however, that there was little moral discipline and restraint left in them. Hence he hit upon this device to distinguish the worthy from the worthyless. Those who could not endure thirst even for a short while, would not be expected to remain steadfast in their confrontation with an enemy at whose hands they had already taken a beating.
272. These were presumable the people who had shown their impatience on the bank of the river. (See the preceding note - Ed.)