John Chrysostom
As long as Moses kept his hands raised, the Israelites experienced victory; when he lowered them, they faced defeat. This serves as a representation of the cross. Aaron and Hur supported Moses’ hands during the struggle.
Moreover, Moses portrayed the cross in yet another way. When discussing the cross, it’s important to acknowledge additional representations that reflect the essence of the sacrament. In what other manner did Moses illustrate the cross? Consider this: while the Israelites were confronted in the wilderness by a foreign nation known as the Amalekites, Moses prepared and sent his successor, Joshua, to engage them, while he remained on the mountain with his hands lifted high. Scripture tells us that Moses ascended the mountain and raised his hands.
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“And when Moses lifted up his hands, Israel prevailed; and when he put down his hands, Amalek prevailed.” What is the significance of this representation? Those who wish to downplay the glory of Christ’s cross might argue that this image is merely a depiction of prayer, not a foreshadowing. However, if this were the case, if the victory stemmed solely from prayer, then why does Scripture attribute the triumph not to prayer (as it does not state, “when Moses prayed,” indicating that the victory was not a mere result of prayer), but rather to the posture of his hands? Indeed, when Moses lowered his hands, the Israelites experienced defeat; when his hands were raised, the Amalekites were vanquished. If it was merely a matter of prayer, we would be inclined to say, “and when Moses prayed, he overcame.” However, Scripture deliberately omits any mention of prayer, not as a redundancy but to emphasize the significance of the cross image, therefore attributing the victory to his gesture. When Moses stretched forth his hands, Israel triumphed. What does the act of raising one’s arms symbolize? Picture those outstretched hands, and you will discern the glorious image of the cross that deserves our reverence.
Although Moses was not physically present with the fighting Israelites, he contributed significantly to their victory by extending his arms to empower his people and instill fear in their foes. Just as the power of love transcends physical distances, so does the efficacy of prayer; love connects those separated, and likewise, prayer can greatly benefit those who are apart. Let us then approach the battle with confidence; for we find ourselves engaged in a different kind of warfare—not against the Amalekites as in times of old nor against any other invading forces, but against demonic forces.