To protect against defilement from contact with the dead, they built courtyards over bedrock, and left beneath them a hollow to serve as protection against a grave in the depths. They used to bring pregnant women there to give birth and rear their children in this ritually pure place. They placed doors on the backs of oxen and placed the children upon them with stone cups in their hands. When the children reached the pool of Siloam, the children stepped down, filled the cups with water, and then climbed back up on the doors. Rabbi Jose said that each child used to let down his cup and fill it from on top of the oxen. When the children arrived at the Temple Mount with the water, they got down. Beneath the Temple Mount and the Temple courtyards was a hollow, which protected against contamination from a grave in the depths. At the entrance of the court of the women, they kept a jar of the ashes of the sin-offerings. If they did not find the residue of the ashes of seven Red Cows, they performed the sprinkling with those of six, of five, of four, of three, of two or of one. They made a causeway from the Temple Mount to the Mount of Olives, arches above arches, each arch placed directly above each pier of the arch below, as a protection against a grave in the depths, on which the priest who was to burn the cow, the cow itself, and all who aided in its preparation went forth to the Mount of Olives. If the cow refused to go out, they did not take out with it a black cow, lest it be said that they killed a black cow instead of a Red Cow. Nor did they bring out another Red Cow, lest it be said that they killed two Red Cows. But Rabbi Jose said it was not for this reason, but because says, And he shall bring her forth, implying: by herself.