The call to battle transitions from a voluntary effort into a binding, authoritative decree. For the first time, a new leadership steps forward, willing to use strict measures to mobilize the nation and forge a united front. The leader takes a pair of oxen that are yoked together [מצודת ציון, ביאור שטיינזלץ], chosen directly from the herd walking ahead of him [חומת אנך]. In a shocking display, he cuts the animals into separate pieces [מצודת ציון, ביאור שטיינזלץ] and hands them to the messengers who had arrived from Jabesh Gilead. They are instructed to declare that anyone who fails to report for the upcoming battle will see the exact same thing done to their own cattle [רש״י].
This severe act carries multiple layers of meaning. On a practical level, it serves as a direct threat of heavy financial penalties for draft evasion [ביאור שטיינזלץ]. On a deeper conceptual level, it offers a profound lesson about national unity. Just as a living body cannot survive when its limbs are severed from one another, the nation cannot endure or find its courage unless it unites to save one of its tribes in distress. The threat to destroy the cattle is a measure for measure consequence for anyone who chooses to separate themselves from the rest of Israel [מלבי״ם].
The proclamation summons the people to follow both the new king, Saul, and the established prophet, Samuel. Samuel's name is included because Saul's authority is not yet universally accepted. Anyone who might hesitate to follow Saul would still march out of respect for Samuel, ensuring a rapid mobilization [רד״ק, אברבנאל]. Mentioning Samuel also fills the nation with confidence in God's salvation, reminding them of the miracles He performed through the prophet in past conflicts with the Philistines [אברבנאל]. At the same time, the forceful nature of the decree highlights the king's fundamental duty to project authority and instill a sense of awe among the people [חומת אנך].
The threat itself is phrased with intentional ambiguity, leaving it unclear whether the punishment will be carried out by human hands or by Heaven [אברבנאל]. Ultimately, the people's swift response does not stem from a fear of losing their property or a dread of Saul himself. Instead, they are moved by a profound fear of God and a reverence that prevents them from rebelling against His anointed leader [מצודת דוד, אברבנאל]. The result is a massive and immediate mobilization, with the people stepping forward in complete agreement and remarkable speed [מצודת דוד]. They fully internalize the message, joining together like the limbs of a single unified body, where every individual part feels the pain of the entire nation [מלבי״ם].