What does the La'av of "Lo Yachbol ... " entail?
Rashi: Following the debtor's failure to pay on time, and the creditor claiming a Mashkon (a security) via Beis-Din, it entails not claiming a utensil that is used to prepare food.
Targum Yonasan: It entails a. ... taking as security a utensil that is used to prepare food, and b. ... using witchcraft to restrain a Chasan and Kalah [from intimacy]. 1
Perush Yonason. See also Na'ar Yonasan.
What is the difference between "Rechayim" and "Rechev"?
Why does the Torah specify "Rechayim va'Rachev"?
Rashi and Yerushali, Nazir, 6:2 #1): Refer to 24:6:2:1.
Bava Metzi'a, 116a and Yerushalmi Nazir, 6:2 #2: To teach us that one is Chayav two sets of Malkos for any similar K'li with two parts that perform the same task. 1
See Torah Temimah, note 97.
What is the meaning of "Ki Nefesh hu Choveil"? Why does the Torah see fit to insert it?
Rashi and Rashbam (citing Targum Onkelos): It means 'Because he is taking as a security his means of Ochel Nefesh (preparation of food" ? such as dishes and pots. 1 And the Torah inserts it to extend the Isur to all utensils that are used for preparing food - Bava Metzi'a, 115a)f.
Targum Yonasan: Refer to 24:6:1:2. It means that he is causing damage to the soul to whom they would otherwise give birth (by preventing it from being born).
In fact, the La'av extends to other things as well - See Torah Temimah, note 99.
What is the significance of the juxtaposition of "Lo Yachbol ... " to "ve'Simach es Ishto"?
Moshav Zekenim (in Pasuk 5, based on Targum Yerushalmi): "Chovel" has connotations of tying with ropes, and "Rechayim va'Rechev" hints at intimacy of a Chasan and Kalah. Do not inhibit them; exempt them from army service. 1
Ha'amek Davar #1: Refer to 24:6:1:2..
Ha'amek Davar #2: There is a lien on a borrower's property to his creditor, but givcing a not on his life, so one cannot take a security for what is needed for one's livelihood. Likewise, a man is obligated to the king [to serve in his army], but his wife is not, so he is exempt when he is needed for her life. 2
Oznayim la'Torah: It hints that the Chasan should not give a mill-stone as a Mashkon, even if it is with the intention of being Mesame'ach his new wife during their first year of marriage. 3
Targum Yerushalmi does not explain how one inhibits them. He concludes that one who does so denies the world to come! Perhaps he is discussing stopping them via witchcraft, like Targum Yonason. However, this is not like the Moshav Zekenim (PF).
In other words, it is essential that her husband makes her happy in the first year (PF).
See Oznayim la'Torah, who elaborates.