וּבָנִ֤יתָ שָּׁם֙ מִזְבֵּ֔חַ לַיהוָ֖ה אֱלֹהֶ֑יךָ מִזְבַּ֣ח אֲבָנִ֔ים לֹא־תָנִ֥יף עֲלֵיהֶ֖ם בַּרְזֶֽל׃
Y edificarás allí altar á SEÑOR tu Dios, altar de piedras: no alzarás sobre ellas hierro.
Targum Jonathan on Deuteronomy
and you shall build there an altar before the Lord your God, an altar of stone, not lifting up iron upon it.