Exodus 20:26 WBT

²⁴  An altar of earth thou shalt make to me, and shalt sacrifice thereon thy burnt-offerings, and thy peace-offerings, thy sheep, and thy oxen: in all places where I record my name I will come to thee, and I will bless thee.

²⁵  And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou [shalt] lift up thy tool upon it, thou hast polluted it.

²⁶  Neither shalt thou go up by steps to my altar, that thy nakedness be not discovered thereon.