Study Nedarim folio 17A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
However, the verse states: “Or if anyone swears clearly with his lips to do evil, or to do good” (Leviticus 5:4). From the juxtaposition of evil and good it is derived that just as the doing of good, which is interpreted as obligating himself to take a positive action, is referring to a permitted
The Talmud answers that both verses are necessary. One verse: “To do evil or to do good,” which is stated in the context of the halakhot of offerings, is necessary to exempt him from bringing an offering for violating an oath, and one verse: “He shall not profane,” is necessary to exempt him from t
Mishnah: There is a vow within a vow. It is possible to impose an additional prohibition, by means of a vow, on an item that is already forbidden by means of a vow. But there is no oath within an oath. If one takes an oath twice with regard to the same action, the second oath does not take effect
Talmud: Rav Huna said: They taught that there is a vow within a vow only where he said: I am hereby a nazirite today, and then he said: I am hereby a nazirite tomorrow. As since an additional day of naziriteship is added by the second vow, an additional 30-day obligation of naziriteship takes effe
The Talmud asks: And according to Rav Huna, instead of teaching that there is no oath within an oath, drawing a distinction between a vow and an oath, let the Mishnah teach a narrower distinction between different vows, stating that there is a case of a vow within a vow, and there is a case in whic