Rabbi Elazar Hamodai taught that God did not merely command the destruction of Amalek—He swore it. And the oath was no ordinary vow. God swore by His throne of glory, the highest and most sacred object in all of creation: "I shall not leave child or grandchild of Amalek under the heavens."
The throne of glory (kisei ha-kavod) occupies a unique place in Jewish cosmology. According to rabbinic tradition, it was one of the things created before the world itself. It sits at the apex of the heavenly realm, the seat from which God governs all of existence. For God to swear by this throne is to stake His eternal sovereignty on the fulfillment of the vow. It is the most absolute, most irrevocable form of divine oath imaginable.
The surrounding Mekhilta passages explain why such an extreme oath was necessary. The verse in question (Exodus 17:16) contains a cryptic phrase: "the hand by the throne of Kah." The rabbis noticed that the divine name is abbreviated here—Kah instead of the full four-letter Name—and that the word for throne (kes) is also shortened from its full form (kisei). From this they derived that God's Name and God's throne are both incomplete as long as Amalek exists. The oath sworn on the throne of glory is therefore also an oath about the throne itself: it will not be fully restored until the decree against Amalek is fulfilled.
Rabbi Elazar Hamodai's teaching elevates the war against Amalek from a historical military campaign to a cosmic imperative. It is not just Israel's battle. It is God's battle, sworn upon the very seat of divine power, binding heaven itself to the outcome.