Rain of hail

Exodus 9:13-35
The Plague of hail: Moses stretch out to his hand toward the sky so that hail fall over Egypt. Through Egypt hail stuck everything in the fields - both men and animals.
Pharaoh knew that he has sinned.
Hail and thunderstorms ruins the flax and barley crops - but not wheat and spelt, which have not yet grown. And those Egyptians who take not of God's warning remain safe.
Why?
The signification of a rain of hail, is falsities from evil destroying the truths and goods of faith, thus the things of the church.
A rain in general signifies a blessing, and in the opposite sense a curse.
But a rain of hail in general signifies the curse that belongs to falsity from evil, and indeed to falsity from evil against the truths and goods of the church.
How?
God is good, God loves his people.