it teaches us as Abaye answers him below.

The Gemara offers an alternative resolution of the difficulty posed by the baraita: And if you wish, say that the assertion of the baraita that the prohibitions against taking an oath in vain and taking a false oath are one means: Just as one brings an offering for taking a false oath, so one brings an offering for taking an oath in vain. And this is in accordance with the opinion of Rabbi Akiva, who deems one liable to bring an offering for taking an oath in vain that refers to the past, just as for taking a false oath that refers to the future.

The Gemara raises an objection to Rabbi Yoḥanan’s distinction between a false oath and an oath taken in vain from a baraita: Which oath is an oath taken in vain? It is when one takes an oath to deny that which is known to people to be true. And a false oath is when one takes an oath that contradicts the past. The Gemara answers: Say, i.e., emend the baraita to say, that a false oath is when one takes an oath and subsequently contradicts it by acting otherwise.

§ When Ravin came from Eretz Yisrael to Babylonia, he reported that Rabbi Yirmeya says that Rabbi Abbahu says that Rabbi Yoḥanan says: If one takes an oath, saying: I ate, or: I did not eat, it is a false oath if it is not true. And its prohibition in the Torah is from: “And you shall not take an oath by My name falsely, so that you profane the name of your God; I am the Lord” (Leviticus 19:12). If one takes an oath, saying: I will eat, or: I will not eat, and breaks his oath, he violates the prohibition: “When a man vows a vow to the Lord, or takes an oath to bind his soul with a bond, he shall not break his word” (Numbers 30:3). And which oath is an oath taken in vain? It is when one takes an oath to deny that which is known to people to be true.

Rav Pappa said: This statement of Rabbi Abbahu, i.e., conveying the opinion of Rabbi Yoḥanan, was not stated explicitly by Rabbi Abbahu; rather, it was stated by inference. It was inferred from that which Rav Idi bar Avin says that Rav Amram says that Rav Yitzḥak says that Rabbi Yoḥanan says that Rabbi Yehuda says in the name of Rabbi Yosei HaGelili: With regard to any prohibition in the Torah, if it is a prohibition that involves an action, one is flogged for violating it. But with regard to a prohibition that does not involve an action, one is not flogged for violating it, except in the cases of one who takes an oath, and one who substitutes a different animal for one that is consecrated to be sacrificed (see Leviticus 27:10), and one who curses another using the Divine Name (see Leviticus 19:14).

The Gemara asks: From where do we derive that one who takes an oath that is not true is flogged? Rabbi Yoḥanan says in the name of Rabbi Shimon ben Yoḥai: The verse states: “You shall not take the name of the Lord your God in vain; for the Lord will not absolve of guilt he that takes His name in vain” (Exodus 20:7). It is the heavenly court that does not absolve him; but the earthly court flogs him, and in doing so, absolves him of guilt.

Rav Pappa said to Abaye: Perhaps this is what the Merciful One is saying: He will not be absolved of guilt at all. Abaye answered: If it were written: For he will not be absolved of guilt, it would be as you say. Now that it is written: “For the Lord will not absolve of guilt,” the verse teaches that it is the Lord Who will not absolve one who takes His name in vain; but the earthly court flogs him, and in doing so absolves him of guilt.

The Gemara asks: We found a source for receiving lashes for an oath taken in vain, despite the fact that no physical action was performed. From where do we derive that this is also the halakha with regard to a false oath? Rabbi Yoḥanan himself said: The verse states: “In vain…in vain,” twice. If the second mention is not necessary for the matter of an oath taken in vain, since it was already stated, apply it to the matter of a false oath.

And Rabbi Abbahu discusses this: With regard to this false oath referred to by Rabbi Yoḥanan, what are the circumstances under which one who takes it is flogged? If we say it is when he says: On my oath I will not eat, and he then ate, that is a prohibition that involves an action. And if one would rather say that he says: On my oath I will eat, and he does not eat, is one who breaks his oath like that flogged? But wasn’t it stated that with regard to one who says: On my oath I will eat this loaf today, and the day passed and he did not eat it, Rabbi Yoḥanan and Reish Lakish both say he is not flogged?

Rabbi Yoḥanan says he is not flogged because it is a prohibition that does not involve an action, and concerning any prohibition that does not involve an action, one is not flogged for violating it. And Reish Lakish says he is not flogged because his violation of the prohibition necessarily involves an uncertain forewarning, and an uncertain forewarning is not considered a forewarning at all. Only if one is forewarned immediately prior to violating a prohibition does he receive lashes. Since not fulfilling his oath is a sin of omission, whenever the forewarning is offered, it remains uncertain whether one will fulfill the oath or not.

In response to his own question, Rabbi Abbahu says: The case where one who takes a false oath is flogged will be where he takes an oath saying: I ate, or: I did not eat. The Gemara asks: What is different about oaths relating to the past, for which one is liable to receive lashes even though he did not perform an action, and oaths relating to the future that one violates by omission, and for which one is therefore exempt from lashes according to Rabbi Yoḥanan because it is a prohibition that does not involve an action? Rava said: The Torah explicitly extended the liability to receive lashes to one who takes a false oath that is similar to an oath taken in vain. Just as an oath taken in vain refers to the past, so too, one is liable for a false oath that refers to the past. This discussion of Rabbi Abbahu’s is the source of his inference as to the opinion of Rabbi Yoḥanan mentioned by Rav Pappa.

Rabbi Yirmeya raised an objection to the opinion of Rabbi Abbahu from a mishna (27b): If one says: On my oath I will not eat this loaf, and then says: On my oath I will not eat it, and then again: On my oath I will not eat it, and he subsequently ate it, he is liable only once. This is the oath on an utterance for which one who violates the prohibition intentionally is liable to receive lashes and one who violates it unwittingly is liable to bring a sliding-scale offering.

Rabbi Yirmeya asks: When the mishna says: This is the oath on an utterance, it is to exclude what? Is it not to exclude the case of one who takes an oath relating to the past, saying: I ate, or: I did not eat, thereby indicating that he is not flogged?

The Gemara responds: No. It serves to exclude one who takes an oath saying: I ate, or: I did not eat, from liability to bring an offering. The Gemara explains: This is the oath on an utterance for which one who violates it unwittingly is liable to bring a sliding-scale offering. But if one takes an oath saying: I ate, or: I did not eat, then no, one does not bring an offering. And this is in accordance with the opinion of Rabbi Yishmael, who says: One is liable to bring an offering only for breaking oaths relating to the future, but one is flogged even for false oaths relating to the past.