can be adduced from the passage [Psalms, cix. 18]: "And it cometh like water on his body and oil into his bones."
Gemara: The first part of the Mishna (treating of a woman) is not in accordance with the opinion of R. Elazar b. Azaryah, who declares her (the woman) clean in that case; the second part of the Mishna, however, (treating of bathing on the third day after circumcision) is in direct accord with his own words (as will be seen in Chapter XIX.). Therefore some rabbis claim that the first part of the Mishna reads clean instead of unclean, i.e., that the whole Mishna is according to the opinion of R. Elazar b. Azaryah, but other rabbis claim that the first part of the Mishna is according to the opinion of other Tanaim, who differ with Elazar b. Azaryah (and the word unclean is correct).
"And they shall be ready against the third day" [Ex. xix. 11]. R. Ada b. Ahbha said: "Moses went up (to the Mount Sinai) at daybreak, and descended the following break of day." He went up at break of day, as it is written [Ex. xxxiv. 4]: "And Moses rose up early in the morning and went up unto Mount Sinai." He descended on the following daybreak, as it is written [ibid. xix. 24]: "Go, get thee down, and then shalt thou come up, thou, and Aaron with thee." We see that the Scripture compares the descending to the ascending, and as the ascending was early in the morning, so was also the descending early in the morning.
The rabbis taught: The decalogue was given to Israel on the sixth day of the (third) month, but R. Jossi said on the seventh day.
Said Rabba: All agree that on the first day of the (third) month the Israelites arrived at the wilderness of Sinai. It is adduced from the analogy of the word "this"; [Ex. xix. 1] "on this day they arrived at the wilderness of Sinai," and [Ex. xii. 2] "this month to be to you the first of months." As in the latter instance the "this" referred to the first, so does it also in the former; furthermore (he said), all agree that the law was given to Israel on a Sabbath; this is to be adduced from the analogy of the word "remember" [Ex. xx. 8]: "Remember the Sabbath day to keep it holy"; and [ibid. iii. 3]: "Remember this day on which ye came out from Egypt." As in the latter instance the very day of their coming out of Egypt is referred to, so is it also in the former instance. Where the rabbis do differ is what day was the first of the month. R. Jossi holds
