Thus says the Lord God: In the first month, on the first of the month, you shall take an immaculate calf from the herd, and you shall expiate the sanctuary.
And you shall present these to the priests and to the Levites, who are of the offspring of Zadok, those who draw near to me, says the Lord God, so that they may offer to me a calf from the herd on behalf of sin.
And you shall take from its blood, and you shall place it on its four horns, and on the four corners of the rim, and on the crown all around. And so shall you cleanse and expiate it.
And on the second day, you shall offer an immaculate he-goat from among the she-goats on behalf of sin. And they shall expiate the altar, just as they expiated it with the calf.
And so shall you do on the seventh day of the month, on behalf of each one who was ignorant or who was deceived by error. And you shall make expiation for the house.
Thus says the Lord God: "The gate of the inner court which looks toward the east shall be closed for the six days on which work is done. Then, on the Sabbath day, it shall be opened. But also on the day of the new moon, it shall be opened.
and so that he may expiate the Sanctuary from the uncleanness of the sons of Israel, and from their prevarications and every one of their sins. According to this rite, he shall act toward the tabernacle of the testimony, which is fixed among them in the midst of the filth of their habitation.
how much more will the blood of Christ, who through the Holy Spirit has offered himself, immaculate, to God, cleanse our conscience from dead works, in order to serve the living God?