Parallel
Deuteronomy 28:23
Swete's Septuagint · Berean Standard Bible
καὶ ἔσται σοι ὁ οὐρανὸς ὁ ὑπὲρ κεφαλῆς σου χαλκοῦς, καὶ ἡ γῆ ἡ ὑποκάτω σου σιδηρᾶ.
The sky over your head will be bronze, and the earth beneath you iron.