Whose stones are iron, and out of whose hills thou mayest dig brass. — We do not hear of mining operations in Palestine from sacred history. “Brass,” i.e., copper; and so in all passages.
Related Commentaries of Deuteronomy 8:9
Deuteronomy 8:9
9 A land wherein thou shalt eat bread without scarceness, thou shalt not lack any thing in it; a land whose stones are iron, and out of whose hills thou mayest dig brass.