The following are [the women] to whom the courts give warning: One whose husband has become a deaf-mute or mentally incompetent, or [who] has been incarcerated in a prison. They did not say this [in regard] to giving her to drink but only [in regard] to disqualifying her from [receiving payment for her] marriage contract. R’ Yose says: Even [in regard] to giving her to drink —- so that when her husband comes out of prison he will give her to drink.

Just as the waters test her, so the waters test him, as it is stated: And they shall enter (v. 22), and they shall enter (v. 27). Just as she is prohibited to the husband, so she is prohibited to the adulterer, as it is said: become defiled (v. 27), and be defiled (v. 29); these are the words of R’ Akiva. R’ Yehoshua said: So did Zechariah ben Hakatzav expound. Rabbi says: The two men-tions in the passage [of], if she had become defiled, be defiled —- one is [in regard] to the husband and the other is [in re-gard] to the adulterer.