Parallel
Deuteronomy 28:23
Rahlfs Septuagint (1935) · 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.