Today's discussion delves into the intricate laws of ritual purity and impurity, specifically concerning different categories of consecrated items and their ability to transmit impurity. We begin with a statement from Rabbi Yonatan regarding a person who eats consecrated food, known as Terumah, that has reached the third degree of impurity. Such a person's body also becomes a third-degree impure item, rendering them unable to eat Terumah, but still permitted to touch it. This ruling mirrors an earlier teaching about ordinary food, or Chullin, that is treated with the stringency of Terumah. In both cases, consuming a third-degree impure item makes one's body a third-degree impure item, prohibiting consumption but allowing touch. The Gemara questions the need for two separate rulings if the outcome is identical.
The Gemara explains that each ruling is necessary to prevent misinterpretations. If only the ruling about Chullin treated like Terumah existed, one might assume that actual Terumah, being inherently more sacred, would have a stricter rule, perhaps even prohibiting touch. Conversely, if only the ruling about Terumah existed, one might think that Chullin treated like Terumah, being less sacred, would not even prohibit consumption. Thus, both rulings are essential to clarify that in either scenario, consuming a third-degree impure item of this type results in a third-degree impure status, prohibiting consumption but permitting touch.
The discussion then shifts to Chullin that is treated with the stringency of sacred offerings, or Kodesh. If a person eats such Chullin that has become a third-degree impure item, their body does not become a fourth-degree impure item, and they are not prohibited from eating actual Kodesh. This is because only actual Kodesh that has been verbally designated as sacred and placed into a sacred vessel can transmit impurity to a fourth degree. Chullin, even when treated with the stringency of Kodesh, cannot elevate impurity to this level. Therefore, if such Chullin were to touch actual Kodesh, it would not make the Kodesh a fourth-degree impure item, nor would consuming it make the person's body a third-degree impure item that would then prohibit them from eating Kodesh.
However, Rami Bar Hama challenges this with a teaching from Rabbi Yehoshua. Rabbi Yehoshua states that if one eats a second-degree impure item of Chullin that is treated with the stringency of Terumah, their body becomes a second-degree impure item in relation to Kodesh. This means that their body can then make Kodesh a third-degree impure item. This seems to contradict the earlier rule that only actual Kodesh can transmit impurity to the higher degrees that affect Kodesh. How can Chullin treated like Terumah, which is less sacred than Chullin treated like Kodesh, have the power to make a person's body a second-degree impure item that can then affect actual Kodesh?
The Gemara resolves this by explaining a fundamental difference in how impurity operates between Terumah and Kodesh. Kodesh is always treated with greater stringency than Terumah. What is considered pure for Terumah may be considered impure for Kodesh. For instance, Terumah can only reach a third degree of impurity, beyond which it cannot transmit further impurity. Kodesh, however, can reach a fourth degree. Therefore, when a person consumes Chullin treated with the stringency of Terumah, their body becomes a second-degree impure item that can indeed affect actual Kodesh, making it a third-degree impure item. This is because Terumah, being on a lower level of sanctity, has a unique ability to impact the higher level of Kodesh. However, when dealing with Chullin treated with the stringency of Kodesh, it is not considered "real" Kodesh, and therefore cannot transmit impurity to actual Kodesh in the same way that actual Kodesh can.
This concept is further illustrated by the Mishnah in Masechet Hagigah, which describes a hierarchy of purity. The clothes of an ordinary person (an Am Ha'aretz) are considered a source of impurity (Midras) for a scholar (a Parush) who is careful about the purity of his Chullin. The clothes of a Parush are considered a Midras for someone who eats Terumah. And the clothes of someone who eats Terumah are considered a Midras for a Kohen who eats sacred offerings (Kodesh). This demonstrates that each higher level of sanctity must be more stringent and consider the lower level as a potential source of impurity. The term Midras refers to the assumption that a woman in a state of ritual impurity (a Niddah) may have sat on the garment, rendering it impure.
However, Abaye challenges this proof, arguing that the concept of Midras applies specifically to garments, where there is a common concern that a Niddah might have sat on them. This concern does not necessarily extend to food items (Perot). Therefore, the stringency applied to garments of a lower purity level impacting a higher one cannot be directly applied to food items. Just because the clothes of someone who eats Terumah are a Midras for a Kohen eating Kodesh, it doesn't mean that the Terumah food itself, even if pure, would be problematic for the Kohen eating Kodesh. The Gemara then considers whether this concern about Niddah sitting on items is a "common impurity" (Tumah Metzuyah) that would apply to fruit as well.
The Gemara then brings a case to further explore the relationship between Terumah and Kodesh. If an Am Ha'aretz brings a barrel of Terumah wine to a Kohen, claiming that a small amount of Kodesh wine has been mixed in, the Kohen believes him regarding the Kodesh. This is because people are generally more stringent and truthful when it comes to Kodesh. Since the Kodesh and Terumah are in the same barrel, the Kohen must also believe the Am Ha'aretz regarding the purity of the Terumah, because if the Terumah were impure, it would render the Kodesh impure. This is an instance of a "mutual belief" (Migu), where belief in one aspect necessitates belief in another. This suggests that Terumah can indeed impact Kodesh when they are intertwined.
The Gemara explains that this belief in the Am Ha'aretz regarding Kodesh, even for Terumah mixed with it, was established by the Rabbis in Judea. They did this to prevent people from establishing their own private temples if their offerings were not trusted in the Beit HaMikdash (Temple). However, this belief only applies when the items are mixed. If an Am Ha'aretz brings a barrel of Terumah and claims there is a small amount of Kodesh in it, the Kohen will believe him and consume the entire barrel as pure. But if the Am Ha'aretz brings a barrel of Terumah and then separately brings a small amount of Kodesh, the Kohen would not necessarily trust him regarding the Terumah, and therefore would not consume the Kodesh. The belief extends to the Terumah only when it is intrinsically linked to the Kodesh.
Rav Huna Bar Natan then presents another challenge, returning to the initial premise that Chullin treated with the stringency of Kodesh cannot make a person's body a fourth-degree impure item. He cites a Mishnah that states: a second-degree impure item of Chullin can make liquids of Chullin impure and render Terumah food unfit. Furthermore, a third-degree impure item of Chullin can make liquids of Kodesh impure and render Kodesh food unfit. This implies that Chullin, even at a third degree of impurity, can indeed affect Kodesh, making it a fourth-degree impure item (since liquids always revert to a first-degree of impurity, which can then transmit further impurity). This directly contradicts the earlier assertion that only actual Kodesh can create a fourth-degree impurity in other Kodesh items.
The Gemara resolves this by stating that this is a dispute among the Tannaim (Mishnaic sages). The first opinion holds that Chullin, even when treated with the stringency of Kodesh, is still essentially Chullin and has no power to impact Kodesh at all. The second opinion, however, maintains that Chullin treated with the stringency of Kodesh is elevated to the level of Terumah. This means it can transmit impurity up to a third degree, affecting other items and making them second or third-degree impure. Crucially, while it can make Kodesh a third-degree impure item, it cannot make it a fourth-degree impure item. Only actual Kodesh, originating from a truly sacred source, possesses the power to create a fourth-degree impurity in other Kodesh items. Thus, the apparent contradiction is resolved by attributing it to a fundamental disagreement between these early sages.