출애굽기 30:18 미슈나 참조: Mishnah Kelim, Mishnah Sotah & Mishnah Middot

The area between the porch (ulam) and the altar is holier, for [priests] who have blemishes or unkempt hair may not enter it. The Hekhal is holier, for no one whose hands or feet are unwashed may enter it. The Holy of Holies is holier, for only the high priest, on Yom Kippur, at the time of the service, may enter it. Rabbi Yose said: in five respects the area between the porch and the altar is equal to the Hekhal, for those afflicted with blemishes or with a wild growth of hair, or who have drunk wine or whose hands or feet are unwashed may not enter there, and the people must keep away from the area between the porch and the altar when the incense is being burned.

[The priest] takes an earthenware bowl and pours half a log of water into it from the laver. Rabbi Judah says: a quarter [of a log]. Just as [Rabbi Judah] reduces the amount of writing, so he reduces the quantity of water. [Then the priest] enters the temple and turns to his right and there was a place there [on the floor] that was a cubit by a cubit, and a marble tablet, to which a ring was attached. When he would lift this up, he would take some dust from beneath it which he puts [into the bowl] so that it would be seen on top of the water; as it is said, “And of the dust that is on the floor of the Tabernacle the priest shall take, and put it into the water” (Numbers 5:17).

The laver was between the porch and the altar, a little to the south. Between the porch and the altar there were twenty-two cubits. There were twelve steps there, each step being half a cubit high and a cubit broad. There was a cubit, a cubit and a level space of three cubits, then a cubit, a cubit and a level space of three cubits, then at the top a cubit, a cubit and a level space of four cubits. Rabbi Judah says that at the top there was a cubit, a cubit and a level space of five cubits.