Ezekiel 43:18-22

43:18 Then he said to me: “Son of man, this is what the sovereign Lord says: These are the statutes of the altar: On the day it is built to offer up burnt offerings on it and to sprinkle blood on it, 43:19 you will give a young bull for a sin offering to the Levitical priests who are descended from Zadok, who approach me to minister to me, declares the sovereign Lord. 43:20 You will take some of its blood, and place it on the four horns of the altar, on the four corners of the ledge, and on the border all around; you will cleanse it and make atonement for it. 43:21 You will also take the bull for the sin offering, and it will be burned in the appointed place in the temple, outside the sanctuary.

43:22 “On the second day, you will offer a male goat without blemish for a sin offering. They will purify the altar just as they purified it with the bull.

Zechariah 13:1

The Refinement of Judah

13:1 “In that day there will be a fountain opened up for the dynasty of David and the people of Jerusalem to cleanse them from sin and impurity.