Augustine of Hippo
This necessitates the role of the interpreter, as merely reading and praising is insufficient; I urge you to engage attentively. The reference to this vine in the psalm often leaves the inattentive in obscurity. Nonetheless, this vine initially represented the Jewish nation. The Israelites had dominion reaching the sea and extending to the river. The sea, as indicated in Numbers 34:5, was in close proximity; and to the east lay the Jordan River. A portion of the Jewish populace inhabited the land beyond the Jordan, while the entirety of the nation remained within its banks.
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Thus, the reference to both the sea and the river pertains to the kingdoms of Judah and Israel, although it does not extend from sea to sea or from the river to the ends of the earth; this signifies the future fulfillment of the vineyard, alluded to in this passage. When I mention the foretelling of its completeness, I refer back to the origin from which this fulfillment will arise. Will you speak of the origin? Even to the river. Will you refer to the ultimate extent? It shall have dominion from sea to sea, which signifies its presence filling the earth.
Let us consider Asaph's testimony regarding the initial vineyard and the anticipated outcomes for the subsequent vineyard, which remains the same. So, what about the vineyard that was initially set to extend her reach across the earth? It first occupied a space where its shadow enveloped the mountains. Who are the mountains? They represent the prophets. Why does her shadow cover them? Because they spoke ambiguously regarding the prophecies. The Prophets declare, 'Observe the Sabbath, circumcise on the eighth day, and offer a sacrifice'—a sheep, a calf, or a goat. Do not be unsettled; her shadow encompasses the mountains of God; after the shadow, a revelation shall follow. Her branches are likened to the cedars of God, indicating her protection over these lofty trees, which, despite their height, belong to God. The cedars symbolize the proud that must be humbled. The cedars of Lebanon and the towering heights of the world overshadowed this vineyard, alongside the mountains of God, which include all the holy Prophets and Patriarchs.