Therefore glorify the LORD in the east, even the name of the LORD God of Israel in the coastlands of the sea.
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Cyril of Alexandria
By “sea” he means the multitude of nations, and by “coastlands,” perhaps, he means cities. All their inhabitants will “raise their voices” when the divine wrath comes upon them. But the majesty of Christ will somehow be in the sea, that is, in all those nations, and they will realize that it is through divine Providence that they are destroyed and annihilated. They are destroyed because their impiety provoked the Almighty God; hence they will reject their gods who are unable to help them. That is how the majesty of the Lord is celebrated. It is clear that the purpose of the prophecy is to point to the mystery of Christ and to remind about the coming salvation in him.… Now, when the preaching of the holy apostles, which leads the nations from the idolatry to the grace of Christ, is spread to the ends of the earth, then, he says, “they shall cry aloud from the sea,” that is, all the nations of the world.