Isaiah 11:15

It is said, as Paul witnesses: "And from sin He condemned sin." He bound his tongue with a cord, because by means of the likeness of sinful flesh He swept away all his deceitful arguments from the hearts of His Elect. For behold, when the Lord appears in the flesh, the tongue of Leviathan is bound, because, when His truth had become known, those doctrines of falsehood were silenced. For where is now the error of the Academicians, who endeavour to establish on sure grounds that nothing is sure, who with shameless brow demand from their hearers belief in their assertions, when they declare that nothing is true? Where is the superstition of the Mathematicians, who, looking up at the courses of the constellations, make the lives of men to depend on the motions of the stars? Though the birth of twins often scatters their doctrine to the winds; for though born at one and the same moment, they do not abide in the same kind of conversation. Where are those many false teachings, which we abstain from enumerating, for fear of digressing far from the course of our commentary? But every false doctrine has now been silenced, because the Lord has bound the tongue of Leviathan by the cord of His Incarnation. Whence it is also well said by the Prophet: "And the Lord shall lay waste the tongue of the Egyptian sea." For the 'tongue of the sea,' is the knowledge of secular learning. But it is well called 'the Egyptian sea;' because it is darkened with the gloom of sin. The Lord, therefore, laid waste the tongue of the Egyptian sea, because by manifesting Himself in the flesh, He destroyed the false wisdom of this world. The tongue of Leviathan is, therefore, bound with a cord, because the preaching of the old sinner was bound by the likeness of sinful flesh.

And the Lord will dry up the tongue of the sea of Egypt, and he will lift his hand over the river with the strength of his spirit, and he will strike it in the seven streams, so that people can cross it in sandals. And there will be a highway for the remnant of my people who are left from Assyria, just as there was for Israel on the day when they came up from the land of Egypt. Just as Edom and Moab, and the sons of Ammon will submit their hands to the Apostles, so that they may obey the preaching of the Gospel, in the same way the Lord himself, who fulfilled those things in his Apostles, will dry up not the sea according to the Septuagint, but according to the Hebrews, the tongue of the sea of Egypt, which previously blasphemed against the Lord and presided over the Egyptian superstition. And in the Psalms we read: This great and spacious sea, wherein are reptiles without number (Psalm 10:25-26). It is said of them: This dragon, whom you have made to mock at him. Therefore, he shall desolate, that is, put under a curse, as Theodotion, Aquila, and Symmachus translated it, the tongue of the Egyptian sea, and he shall lift up his hand over the rivers of Egypt in the strength of his spirit, or his most violent spirit, which we understand to be the kingdom of the Romans. For when Caesar Augustus was reigning (Luke 2), when the flower of Jesse's root ascended, and the first census was made in the Roman world, the most powerful kingdom of the Egyptians, which lasted for many generations, was destroyed by the death of Cleopatra, and the Egyptian river was struck into seven streams, or into seven valleys. For the Nile, which previously flowed in one channel and was impassable, was divided and cut into seven very humble valleys and streams, so that it could be crossed on foot. However, this symbolically signifies that the nation of the Egyptians, given over to such great idolatry and worthless superstition, consecrated hawks, owls, dogs, goats, and donkeys with divine names, in order to distribute the infinite power of the kingdom through individual judges of the Roman empire, so that Thebes has one judge, Libya has another, Pentapolis has another, Egypt has another, Alexandria has another, and various regions, which the Egyptians call 'laws'. Therefore, under the metaphor, the Nile is divided into parts and cut into streams, so that the Evangelical word can flow…