Iron Sky, Bronze Ground

Leviticus 26:19 is basically Deuteronomy 28:23 but with the sky becoming like iron and the ground like bronze.

According to Leviticus 26:19, one of the consequences of disobeying God was that the sky will become like iron, and the ground like bronze. However, this is not about the sky literally becoming iron and the ground literally becoming bronze. It just symbolizes poor harvest.