Tafsiran Rut 2:11: Tze'enah Ure'enah & Ibn Ezra

“And Boaz replied” [2:11]. Boaz replied and said: it has been told to me everything that you have done with your mother-in-law after the death of you hus- band. You left your father and mother, the land of your birth, and you joined a people that you did not previously know, as the verse says. You left your father and mother, means the foreign gods that are called mother and father by the nations of the world. The verse says, you joined a people that you did not know yesterday or before yesterday. This means, had you come yesterday or before yesterday, you would not have been accepted, since only today was the halakhah studied in the house of study that a woman from Moab and Ammon might join Israel, but a man cannot join Israel.⁵¹Ruth Rabbah, 5.6; Yalkut Shimoni, Ruth, Remez 601. The reason that a man from Ammon or Moab cannot join Israel is because they did not want to give bread and water to Israel when they left Egypt.⁵²Deuteronomy, 23:4–5. The custom was that it was a man used to hand out the bread and not a woman who would bring bread to a wayfarer.

“And he said to her” [2:11]. And Boaz said to her, during the mealtime, come here. You should eat of the bread and dip your bread in vinegar. She sat down near the reapers and he handed her roasted grain and she ate, was satiated, and left some. Our sages say that when a person does a mitzvah, they should do it with their whole heart. Why should Reuben know that the Torah would write about him, “When Reuben heard it, he tried to save him from them” [Genesis, 37:21]? This means, when Reuben heard what his brothers wanted to do to their brother, Joseph, he protected him. However, if Reuben had known that the Holy One would write this about him, he would have brought Joseph to his father on his shoulders. If Boaz had known that the Holy On would write about him, “He handed her roasted grain and she ate her fill and had some left over” [2:14]. If Boaz had known this, he would have given her roasted calves. Our sages say that in previous times when a person did a mitzvah, the prophet wrote it down, but now when a person performs a mitzvah, who writes it down? Elijah the prophet writes it down and the king Messiah and the Holy One sign it.⁵³Yalkut Shimoni, Ruth, Remez 604.

It has been fully related to me. An action where the agent is not specified.