Devarim 27:4-6

Orthodox Jewish Bible

⁴ Therefore it shall be when ye be gone over Yarden, that ye shall set up these avanim, which I command you today, in Mt Eival, and thou shalt plaster them with plaster.

⁵ And there shalt thou build a mizbe’ach unto Hashem Eloheicha, a mizbe’ach of avanim; thou shalt not use any barzel (iron [tool]) upon them.

⁶ Thou shalt build the mizbe’ach of Hashem Eloheicha of avanim shleimot (uncut stones); and thou shalt offer olot thereon unto Hashem Eloheicha;