Isaiah 19:24

The third; the third party, to wit, in that sacred league, whereby all of them oblige themselves to God. With Egypt and with Assyria: these people are named because they were the most obstinate and malicious enemies to God's church, and therefore in a special manner accursed by God; but they are here put synecdochically for all the Gentiles. Even a blessing: this is peculiar to Israel, who is not only a third party, as the others are, but is the most eminent and blessed of the three, as being the fountain, or rather the conduit-pipe, by which the blessing is conveyed to the other two, because Christ was to be born of them, and the gospel church and ordinances were first established among them, and from them derived to the Gentiles. In the midst of the land; or, of the earth; which may be added, to imply that God's blessing should be conveyed from and by Israel, not only to the Egyptians and the Assyrians, but to all the nations of the earth, in the midst of which the land of Israel might well be said to lie. Or, of that land of which I am here speaking; or, the singular number being put for the plural, of those lands, Egypt and Assyria, between which Israel lay.