וְכִֽי־יִמְכֹּ֥ר אִ֛ישׁ אֶת־בִּתּ֖וֹ לְאָמָ֑ה לֹ֥א תֵצֵ֖א כְּצֵ֥את הָעֲבָדִֽים׃
A jeżeliby zaprzedał mąż córkę swą na służebnicę; to nie wyjdzie ona jako wychodzą niewolnicy.
Tosafot
"How do we know [a wife can be acquired] with a contract?" And it is not possible to say this from the ק״ו of Hebrew slavegirl who isn't acquired with sex but is acquired with a contract. Firstly because we derive the slavegirl herself from the hekesh to "another" (=a wife) later (Kiddushin 16a where we derive that a Hebrew slavegirl can be acquired with a contract from the wife). And even according to Rav Hisda who derives it (on Kiddushin 16a) from "'She shall not go out like slaves go out' (Shemot 21:7), but she can be acquired with the acquisition of slaves" [i.e. with a contract and therefore he does not derive this law for the slavegirl from the law of the wife], it is [still] possible to object [to the ק״ו] as above [on 4b where they pointed out] "that she [the Hebrew slavegirl] can go out with money [unlike the wife]"! Secondly, since according to Rav Hisda the father writes [the contract for the Hebrew slavegirl], it is not possible to learn [from this] about a wife who is not acquired in this way since the husband writes [the contract].
Penei David
Alternatively, bereshit is a combination of [the letters of] ashrei bat (happy is the daughter) - which hints to the soul - as man is made up from the heavens and the earth and from all of the worlds; and by way of the Torah and its commandments, he binds the worlds and brings bounty to all of them. And with this is answered the inquiry of the early scholars (Rishonim) - that [since] the soul before its coming to this world eats from the bread of its Father and enjoys from the holy things of the heavens, so why was it created in the body and [brought] to this world, which is very dangerous [for it] - and go and see that with four [people] do we find that they died from the counsel of the snake [and not from their sins], only four, and [about this] it is written (Ecclesiastes 7:20), "there is no righteous person on the earth who does good and does not sin." And our master, of blessed memory, answered this inquiry by saying, "one who eats from his own (which he has earned), etc." And the Maggid praised this answer, as he said in the book, Maggid Mesharim, see there; and the commentators used this greatly, as is known. However, according to what has been said [above], it is fine; since with the coming of the soul to this world, the worlds connect - since the life force, spirit and soul (neren) attach [themselves] to the four [physical] elements and, through this, connect all of the worlds and bring bounty to all of them. And as my master, my elder, the rabbi explained - I brought his words in my little book, Rosh David, Parshat Mishpatim, see there - and it is clear, that [the order of things] is not sufficient except with the creation of man in this world. And behold, the holy elder expounded [the verse] (Exodus 21:7), "And if a man sells his daughter," to be about the soul. And this is hinted [to by] ashrei bat (happy is the daughter); meaning to say, the creation of man should not [seem] difficult as mentioned, since the 'daughter' is happy - happy is the soul that comes to this world. Since God has created man so that, through him, He connects the heavens and the earth and bounty comes to them all, and [so] He binds all of the worlds. And be exact and very much find the truth [to this].
Rav Hirsch
Es statuiert nun das Gesetz: בבית אביה בנעריה, und ebenso am Schlusse dieses Gesetzkapitels (V. 17): בנעריה בית אביה, daß sie während ihres נעורים-Alters, also bis nach zurückgelegten sechs Monaten nach erlangter Pubertät, wo sie vom נערה- zum בוגרת-Charakter übergeht (siehe Schmot 21, 7) בית אביה der Obhut des Vaters hinsichtlich ihrer Gelobungen angehört (Ketubot 46b und 47a).