1 Samuel 30:17

From the twilight . It has been debated whether this means the evening or the morning twilight; but the words which follow, "unto the evening of the next day," literally, "of (or for ) their morrow," seem to prove that it was in the evening that David arrived. Moreover, in the morning they would not have been feasting, but sleeping. David probably attacked them at once, and slew all within reach until nightfall. The next morning the battle was renewed; but as David had but 400 men, and the Amalekites covered a large extent of country, and probably tried to defend themselves and their booty, it was not till towards the next evening that the combat and the pursuit were over. As they would need pasture and water for their cattle, they had evidently broken up into detachments, which had gone each into a different place with their herds. The pursuit must have been prolonged to a considerable distance, as no more than 400 young men escaped, and even they only by the aid of their camels.