פירוש על בראשית 29:12

כי אחי אביה הוא HE WAS HER FATHER’S BROTHER — near kin to her father, as (Genesis 13:8) “for we are men, brothers (אחים)” (i. e. near kin). A Midrashic explanation is that he meant: if he (Laban) intends to practice deceit upon me then I am his brother (a match for him) in deception; if, however, he is an honest man then I, too, am the son of his sister, the pious Rebekah (Genesis Rabbah 70:13).

AND SHE TOLD HER FATHER. Rashi comments: “Her mother was dead.” And so it is stated in Bereshith Rabbah.⁷⁴70:12. But according to the plain meaning of Scripture, Rachel related it to her father in order to inform him of the arrival of his relative and so that he should go forth to meet him and honor him. For, as regards her mother, what was Jacob to her and what could she do for him? However, Rebekah did show her mother the jewels which Eliezer gave her,⁷⁵Above, 24:28. as is the custom of maidens.

כי אחי אביה הוא, the Torah adds this at this point to justify his kissing Rachel and her allowing herself to be kissed by him.

ויגד יעקב לרחל כי כי אחי אביה הוא, Jacob told Rachel that he was her father's brother, etc. This means that Jacob told Rachel that his relationship to her was based on two elements. 1) There was a biological relationship, i.e. he was a blood relative of her father; 2) there was a spiritual relationship between them inasmuch as he was a son of Rebeccah who was known far and wide for her righteousness. Righteous people are considered as all related to one another.

כי אחי אביה הוא, i.e. a son of her father’s sister, a son of Rivkah, who was known to all the people of Charan to have become married to Yitzchok.

ויגד יעקב לרחל כי אחי אביה הוא, ”Yaakov told Rachel that he was the brother of her father.” According to Ibn Ezra, the Torah now fills us in on something Yaakov had told Rachel already earlier in their conversation, before he had kissed her.

Because her mother had died... Regarding Rivkah it is written (24:28), “The girl told her mother’s household.” [Why here did Rochel tell her father?] Thus Rashi explains that Rochel’s mother had died.

ויגד יעקב לרחל, “Yaakov told Rachel;” He must have identified himself already previously, or he would not have dared kiss her as is reported in verse 11. Now he told her more details about himself. כי אחי אביה הוא, “that he was a brother of her father.” After having told her this, he kissed her. Another exegesis of this sequence: Yaakov first told Rachel that he was the brother of her father in order that she should not feel insulted that he had been fresh enough to kiss her. ותגד לאביה, “she told her father.”[This is already the second time that Bethuel is described as alive; I do not understand why our author has claimed that he died before Lavan ever came to Charan, as he did on verse 5. Ed.] When Rivkah had a similar experience with Eliezer, she is reported as relating her encounter to her mother, as she did not know precisely who Eliezer was. Daughters normally keep their mothers’ company, not their father’s.

ותגד לאביה AND SHE TOLD HER FATHER, because her mother was dead and she had no one to tell except him (Bereishit Rabbah 70:13).

וכי בן רבקה הוא, he mentioned Rivkah to Rachel although Rachel did not know Rivkah at all. He did so because he wanted her to tell Lavan about who exactly Yaakov was.

ותרץ ותגד לאביה, “she ran home and told her father.” Rashi explains that the reason she told her father, not her mother, as when Rivkah had encountered Eliezer, was that her mother had died already. Nachmanides writes that we do not need to resort to Rashi’s explanation and assume that Rachel was a semi-orphan. Seeing that Yaakov was a relative of her father’s and not of her mother’s, it was natural that she would bring this news first to her father. Rivkah, running to her mother was natural, as she wanted to entrust the jewelry she had received to her mother’s safe keeping.

He may have hinted at something we learned in Megillah 13 where we are told that Rachel told Jacob that her father was a swindler. Jacob told Rachel that he could match her father since he was of the same family. Having said so Jacob became afraid that Rachel would form a bad impression of his character; he therefore added that he was the son of Rebeccah who had employed wiles only in order to help justice and righteousness to prevail. This is the deeper meaning of Kohelet 7,12 that "(applied) wisdom preserves the lives of its possessors." He would never employ trickery for nefarious purposes something that would result in the destruction of its perpetrators.