וּלְשֵׁ֥ם יֻלַּ֖ד גַּם־ה֑וּא אֲבִי֙ כָּל־בְּנֵי־עֵ֔בֶר אֲחִ֖י יֶ֥פֶת הַגָּדֽוֹל׃
And unto Shem, the father of all the children of Eber, the elder brother of Japheth, to him also were children born.
Read halakhic rulings (Jewish law) on Genesis 10:21 from the Mishneh Torah and classical halakhic sources, free online.