THEOSISTheodoret of Cyrus
The Lord spoke to Adonai, declaring: The nourishment shall be amended; shall not the root remain tender, and its fruit perish, causing all the trees to wither? This signifies that he will be misled in his expectations and shall not obtain what he hopes for; for the Egyptian support shall not only fail him but will also generate decay in the roots and cause the branches that have strayed from him to wither. This indeed came to pass. Zedekiah, counting on the aid of the king of Egypt, broke his alliance with Nebuchadnezzar, ultimately leading to his capture, the enslavement of the people, and the burning of the city. Will not a great strength or numerous warriors be able to uproot him? This means that the king of Egypt will not dispatch a formidable army, and instead of offering assistance, his forces will actually sever him from his root.