Do not build the altar with stones hewn by metal

'If you make an altar of stone for Me, you shall not build it of cut stones, for if you wield your tool on it, you will profane it.

Hebrew

כא וְאִם-מִזְבַּח אֲבָנִים תַּעֲשֶׂה-לִּי, לֹא-תִבְנֶה אֶתְהֶן גָּזִית: כִּי חַרְבְּךָ הֵנַפְתָּ עָלֶיהָ, וַתְּחַלְלֶהָ.

Greek

25 ἐὰν δὲ θυσιαστήριον ἐκ λίθων ποιῇς μοι, οὐκ οἰκοδομήσεις αὐτοὺς τμητούς· τὸ γὰρ ἐγχειρίδιόν σου ἐπιβέβληκας ἐπ᾿ αὐτούς, καὶ μεμίανται.

• Parashah: Yitro
• Sefer HaChinuch: 40
• Mishneh Torah: Service — The Chosen House

• Exodus 20:25

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.