פּירוש אויף רות 3:15

“And he said, hold out the shawl” [3:15]. He said to her, grab onto the shawl that you are wearing. She grabbed onto it and he measured six measures of barley and he placed it on her and she came to the city. Some ask, how could a woman carry six measures of barley? Some sages write that God, blessed be He, made a miracle for her that she should be able to carry it. Why specifically six? He showed her that six righteous men would be descended from her: David, Daniel, Hananiah, Mishael, Azariah and the Messiah. They will receive six good blessings – spirit, wisdom, understanding, counsel, spirit of wisdom and fear of God. The question is asked, why does it say, “and he came to the city”? This means, and he came to the city, as if it was speaking about a man when it should have said, “and she came”? However, the verse wants to show us that Boaz went with her and accompanied her so that nobody would accost her on the way. Therefore, it is written, “And he came.” This refers to Boaz.⁶⁸Ruth Rabbah, 7.2.

Six measures of barley. It is impossible to say [that it means] six se’ah, because it is not customary for a woman to carry such a [large] load; rather, [it means] literally, six barleycorns; and he hinted to her that there was destined to emerge from her a son who would be blessed with six blessings: “the spirit of wisdom and understanding, counsel and might, the spirit of knowledge and fear of Adonoy.”²⁰Yeshaya 11:2. Alternatively, this is the equivalent of a kav which is one sixth of a se’ah, also referred to as a שש and mentioned in Yechezkel 45:13. The Mishnah in Maseches Pe’ah (8:7) states that a poor person who is traveling from place to place must be given not less than a half kav of wheat from which to make bread. Bo’az therefore gave Naomi a whole kav, one half for Rus and the other half for herself. (Malbim) The six barleycorns may allude to the six righteous men, each blessed with six virtues are destined to descend from this marriage: Dovid, Daniel, Chananya, Mishaeil, Azaryah and Moshiach. (Targum)

"וימד שש שעורים (and he measured six measures of barley):" The text narrates what he gave her. And in the Midrash, it is interpreted that six righteous men will descend from her.