Comentario citado sobre I Reyes 11:30

One need not earn a doctorate in mathematics to realize that ten plus one does not equal twelve. Yet, after Achiyah HaShiloni (Melachim I 11:30-32) tears Yarav'am ben Nevat’s⁴¹It is a matter of debate as to whether Achiyah tears his own garment or that of Yarav'am (see Radak to Melachim I 11:29). garment into twelve pieces, he tells Yarav'am to take only ten pieces. Achiyah explains that the ten pieces represent the ten Shevatim (tribes) Yarav'am will rule over and that one Sheivet, presumably represented by a remaining piece of the garment, will remain in the control of Shlomo HaMelech’s descendants. What about the twelfth piece? Moreover, two Shevatim come under the rule of Shlomo’s son Rechav’am, Yehudah and Binyamin (Melachim I 12:21). Why is Sheveit Binyamin not addressed in Achiyah’s Nevu’ah?

Interestingly, the Malbim writes that Achiyah does not merely pronounce the secession, but also dramatizes it by tearing the garment to demonstrate the inevitability of the breakoff (Melachim I 11:30). The Malbim asserts that any Nevu’ah accompanied by an action will always actualize and is not subject to negotiation or change.

In addition, in regard to both positive and negative prohibitions, the Malbim states in several places (including to Melachim I 11:30) that a Nevu’ah accompanied by a sign cannot be rescinded. The Nevu’ah Achiyah HaShiloni expresses to Yarav’am ben Nevat is such an example, as the Nevu’ah is accompanied by the tearing of clothing.