Why does the Torah write "Veshachav Ish osah" as if she is guilty of adultery?
What are the implications of the word "Ish"?
Rashi: "Ish" comes to preclude a Katan (under bar-Mitzvah) and an animal, neither of which render a woman a Sotah.
What does the word "Osah" come to preclude?
Rashi: "Osah" comes to preclude the woman's sister, who does not forbid her to her husband in the event that he committed adultery with her. 1
See Sifsei Chachamim, who cites the Gemara in Yevamos, 95a. The Tanchuma that Rashi cites, refers to a case where a Sotah's sister (who resembled her) went to Yerushalayim and, posing as the Sotah, drank the water of a Sotah and did not die. It is not clear however, why it requires a Pasuk to preclude it; since it is obvious that Rachel will not die if it is Le'ah who sinned?
And what are the implications of the phrase "Vene'elam me'Einei Ishah'?
Rashi: It precludes the wife of a blind man from the Din of Sotah, and includes one who simply turned a blind eye to his wife's machinations.
Seforno: It implies that he somehow remained unaware of all the goings-on. 1
Seforno: Because if was aware of what was happening and remained silent, the Mei Sotah would not work.
What are the specifications of "Venist'rah"? For how long must they be secluded?
Rashi: It means that they were secluded for as long as it takes for them to have been intimate. 1
Why does the Torah add "ve'Hi Nitma'ah", even though it is not sure that she committed adultery?
Rashi; (in Yevamos, 58a): To teach that, the moment witnesses testify that she secluded with the man concerned, she becomes forbidden to her husband (until she drinks from the Mei Sotah). 1
In fact, the Torah writes "ve'Hi Nitma'ah" three times in the Parshah of Sotah
What if there are witnesses that she is guilty of adultery?
And what are the implications of "ve'Hi Lo Nispasah"?
Rashi and Rashbam: It means that she was not raped (because if she was, she is Patur