During the rapid pursuit of the Amalekites, David's military force arrives at a geographical dividing line where part of the army is forced to halt. They reach the Besor Brook, a specific location where a portion of the men remain behind. A central question arises regarding the exact identity of the men who stop in their tracks, especially since the ongoing account soon mentions two hundred men halting.
The primary approach among commentators is that this narrative is written concisely and actually refers to those same two hundred men out of the total force of six hundred. According to this line of thought, the entire army of six hundred fighters reaches the brook together. However, a third of them are weak, exhausted from the journey, or positioned at the rear guard, leading them to stop at the water's edge rather than cross. It is emphasized that these men do not retreat or return to their homes. Instead, they stand their ground on the riverbank to wait for their companions and guard the heavy equipment. By leaving the baggage behind, the remaining four hundred men can continue the chase unburdened and fully prepared for battle. It is also possible that these exhausted men are afraid of confronting the enemy troops. Recognizing their extreme fatigue, David intentionally assigns them to stay and serve as guards for the supplies.
A contrasting perspective seeks to resolve the apparent repetition of men stopping by suggesting that this initial group is entirely different from the two hundred who halt at the brook. Instead, these are individuals who never embark on the pursuit in the first place, remaining behind to protect the city of Ziklag [אברבנאל, מלבי״ם]. Within this approach, David takes only his core six hundred warriors on the mission. The people left in the city are those simply unfit for combat, such as the elderly, the sick, young boys, and servants [אברבנאל]. Another explanation is that the men who stay behind are recent recruits from the tribes of Manasseh and Benjamin. Because their own wives and children are not among the captives taken by the enemy, they lack a personal stake in the rescue mission and remain in the city. Consequently, only David and his veteran soldiers set out to save their kidnapped families [מלבי״ם].