Hardened - Different words in the Hebrew. In Exodus 9:34 the word means “made heavy,” that is, obtuse, incapable of forming a right judgment…

And the heart of Pharaoh was hardened
Instead of being softened, as it seemed to be when under the plague, it became…

Woeful havoc this hail caused: it killed both men and cattle. The grain above ground was destroyed, and only that which had not yet come up was pre…