15. The hearth is seven feet high, with four horns projecting upward from the hearth.
16. The hearth is twenty-one feet square; each side is equal to the others.
17. The ledge around the hearth is twenty-four and a half feet long by twenty-four and a half feet wide, a square. Its outer rim is ten and a half inches, and its base all around is twenty-one inches. Its ramp faces east.
18. He said to me, Human one, the Lord God proclaims: These are the regulations established for the altar on the day when it is prepared for making entirely burned offerings and dashing blood on it.
19. You will provide a young bull as a purification offering to the levitical priests who are descendants of Zadok, the ones who may draw near to minster to me. This is what the Lord God says.
20. You will take some of its blood and set it on the four horns of the altar and on the four sides of the ledge and on the curb all around. So you will purify it and purge it.
21. Then you will take the bull selected as the purification offering, and the priests will burn it in a designated place of the temple outside of the sanctuary.