They must make the altar holy

¹⁸ Then he said to me, ‘Son of man, this is what the Almighty Lord says: These are the rules about the altar. On the day that it is ready to use, the priests will offer burnt offerings on it. They will alsosplash blood from the sacrifices on it. ¹⁹ You must give a young bull to the priests to offer as a sacrifice to me. The priests must belong to Zadok's family in the tribe of Levi. They are the only men who can come near to me to serve me. That is what I, the Almighty Lord, say. ²⁰ You will take some of the bull's blood and put it on the four horns on the top of the altar. Also put some blood on the corners of the middle part of the altar. And put some on the border around the edge of the altar. Do that to make the altar clean and pure for me.