¹⁵ The altar hearth^[a] is 2.1 metres high, and four horns^(A) project upwards from the hearth.

²⁰ ‘You are to take some of its blood and apply it to the four horns^(A) of the altar, the four corners of the ledge, and all round the rim. In this way you will purify the altar and make atonement for it.^(B)