Genesis 9:27

God also expanded Japheth, so that he dwelt in the tents of Shem, and that Canaan was his servant, when the Greeks or Romans, certainly descended from the line of Japheth, possessed the kingdoms of Asia, in which the descendants of Shem lived, and among other things made the Canaanites tributary to themselves.

(Verse 27) May God enlarge Japheth, and may he dwell in the tents of Shem. From Shem come the Hebrews, and from Japheth, the people of the nations are born. Therefore, because the multitude of believers has been enlarged from the breadth, which is called Japheth, it has received the name "breadth". But what he says, "And may he dwell in the tents of Shem," is prophesying about us, who are engaged in the teaching and knowledge of the Scriptures, with Israel being cast out.

May God enlarge Japheth, and let him dwell in the tents of Shem. Indeed, Japheth dwells in the tents of Shem because in the faith of the patriarchs and prophets, in the prophetic Scriptures, in the spiritually understood legal sacraments, the Church sojourns on earth. For we are accustomed to use tents in war or on a journey, and in the tents of the Israelite people we, who have come to Christ from the Gentiles, dwell, because certainly as long as we sigh for the heavenly homeland while placed on this path of life, as long as we fight against the snares of the ancient enemy with Christ as our leader and helper, it is necessary always to hold on to the sayings and deeds and works of the ancient fathers as examples of life and profession; so that, protected by their authority, we may more certainly and securely strive towards the palm of reward with a perfected struggle. However, it also aligns with the growth of the holy Church, which has filled the whole world, that the name Japheth, which means 'Enlargement' is used; whence Noah, alluding to this name itself, says: May God enlarge Japheth, that is, may He grant enlargement. It is fitting, however, that what was said of Shem is repeated of Japheth: And let Canaan be his servant, because certainly the unbelieving Jews serve both peoples of believers, although with an impious mind, they provide service for salvation, not only in that they aid with the authority of the sacred volumes and strengthen in faith, but also in that they pursue them as far as they are able, because indeed by pursuing on account of righteousness, they make them higher participants of eternal blessedness, and even in that their offense of hard-hearted blindness prompts them to give greater thanks to their Redeemer and illuminator. To this people indeed the name Canaan, which means 'Commotion,' most aptly applies. For he cannot say: He set my feet upon a rock, and directed my steps (Psalm 40:3); but uncertain and wavering, he is always in motion. It should also be noted according to the literal sense that not in vain is Canaan cursed when Ham sinned, not he himself but his son, especially when he was neither the firstborn of Ham but his youngest son. For it is written: The sons of Ham: Cush, Saba, and Mizraim, and Phut, and Canaan. Indeed, he foresaw equally in spirit that the progeny of Canaan would sin much more than the rest of the…