וּלְשֵׁ֥ם יֻלַּ֖ד גַּם־ה֑וּא אֲבִי֙ כָּל־בְּנֵי־עֵ֔בֶר אֲחִ֖י יֶ֥פֶת הַגָּדֽוֹל׃
셈은 에벨 온 자손의 조상이요 야벳의 형이라 그에게도 자녀가 출생하였으니
Chizkuni
בראשית; Rashi comments on this word as follows: “Rabbi Yitzchok said that there was not really any need to commence the Torah before the beginning of chapter 12 in Exodus, when G-d addressed the Jewish nation with legislation about the forthcoming Passover. He only did so in order to tell mankind that He owns the earth and therefore can allocate parts of it to those, whom He chooses, i.e. that the Israelites did not rob the Canaanites of their land, which had never been rightfully theirs. Rashi therefore considers the laws about Passover as the first commandment given to the Jewish people. If we were to counter that the seven universal laws that apply to all of mankind apply to us also, and these had been given many years before there was an Avraham, even, the answer is that what Rashi meant was the Passover legislation was the first commandment given to the Jewish people when all of them were present during that address. (Exodus 12,3) To the question that the mere idea of the Canaanites arguing that the Israelites had stolen their land, seeing that what belongs to the slave automatically belongs to his master, and Canaan (Noach’s grandson) had been demoted to being a slave by his grandfather ever since he had been cursed, so how could they have ever owned it? (compare Genesis 9,26) Canaan’s descendants had been slaves of Shem, the great-grandfather of Avraham ever since! Rashi himself pointed this out already on Genesis 12,6. The Canaanites, as alluded to in that verse, had robbed the descendants of Shem of their heritage! We would have to answer that the Canaanites i.e. the tribes making up that kingdom, also contained kings (King of Chatzor) and others who were not descended from the original Canaan. (Compare Joshua, beginning chapter 11) The latter might even have been descended from Shem, so that the Israelites would have had a legal claim on the land they occupied as they were rightful owners. An alternate way of explaining why the Torah commenced with the word (and the story that follows) of בראשית is this. It is to inform us of the sequence in which this material universe came into existence and how once created it was allocated to the creatures inhabiting it, as Rashi explained, i.e. to prove that the Canaanites had no legal claim to dispute the Jews’ viewing it as their inheritance, ancestral heritage, by claiming that rightfully Eylam had a legal claim to it. [Eylam was Shem’s firstborn son, (Genesis 10,21, whereas Avraham was a descendant of Shem’s youngest son Arpachshad, basing themselves on what is written in Genesis 11,13 where this son is listed last, not first as in 10,21. Ed.] Yet another reason for the Torah commencing with the words: בראשית ברא אלוקים, “at the beginning G-d created, etc.;” is to state categorically that the universe in which we live did not exist eternally, or is the result of “the big bang,” but was created by a Creator. When Rashi states that G-d allocated the land of Israel to the Israelites מרצונו, “as an expression of His goodwill,” this is an implied warning that such an allocation was not absolute and irreversible for all future time, otherwise how could He take it back by exiling its people and reallocate it to someone else? Rashi also makes the point that the word ראשית, whenever it occurs in the Bible is invariably linked to the word following it. The author, supporting Rashi, cites an example from Leviticus 2,12: קרבן ראשית תקריבו אותם, “you are to present them as an initial offering.” [Rabbi Chavell, in his annotations, already pointed out that the author’s statement is not quite accurate, pointing to Deuteronomy 33,21, וירא ראשית לו. Ed.]
Radak
וילך...אחות נביות. This Nevayot was an extremely well known personality, and so was his sister. (25,20) Compare also the formulation in Genesis 10,21 which shows that Yaphet was a well known personality.
Tur HaArokh
את שם, את חם,ואת יפת, “Sem, Cham and Yaphet.” Yaphet was the oldest. We know this because the Torah writes יפת הגדול, (Genesis 10,21) The reason why here the Torah mentions Sem first is because he was the spiritually outstanding one of Noach’s sons, whereas Cham was the spiritually most inferior, and he is mentioned immediately after Sem, as he followed him in the order of their birth. Had the Torah listed them in the order: Sem, Yaphet, Cham, not even one of them would have been mentioned in the order of their births. Yaphet did not possess a special distinction which would have justified changing the order of their names on that account.