On that day R’ Akiva expounded: And any earthenware utensil into which any of them falls, whatever is in it shall become tamei (Lev. 11:33) —- it does not say “tamei,” but rather “yitma” —- [even] to render others tamei. This teaches that a loaf which is of a sheni [degree of tumah] can make a shlishi [degree of tumah]. R’ Yehoshua said: Who will remove the dust from your eyes, Rabban Yochanan ben Zakkai! —- for you used to say that a future generation would [pro- nounce] tahor a loaf that was [contaminated as] a shlishi, since there is no verse in the Torah that it is tamei. But [now] does not Akiva your disciple adduce a verse from the Torah that it is tamei, as it is said: Whatever is in it shall be tamei.

On that day R’ Akiva expounded: And you shall measure from outside the city, the east side —- two thousand cubits, etc. (Numbers 35:5). But another verse states: From the wall of the city and outward, one thousand cubits round about (Num-bers 35:4). It is impossible to say one thousand cubits, since it already says two thousand cubits; and it is impossible to say two thousand cubits, since it already says one thousand cubits. How do we resolve this? [The] one thousand cubits [are] a clearing, while [the] two thousand cubits [are] the Sabbath boundary. R’ Eliezer the son of R’ Yose HaGlili says: [The] one thousand cubits [are] a clearing, while the second thousand cubits [are for] fields and vineyards.