Only in Goshen, where the Children of Israel were, was there no hail - Exodus 9:26
Those who are included in the provisions of the covenant are sealed. The storm may sweep around them, but the great angel, who ascends from the east, cries with a great voice to the angels to whom it is given to hurt the earth, and the sea, and the trees, saying, Hurt them not till we have sealed the servants of God in their foreheads (Rev 7:3).
The only spot on which the soul is safe is within the encircling provisions of the covenant. Israel stood there, and was safe - not only from the hail, but from the destroying sword. The invulnerable walls of that sacred enclosure were the oath and promise of God to Abraham. God had bound himself by the most solemn sanctions to be a God to this people, and deliver them; it was necessary, therefore, that He should be their pavilion and canopy, catching the hailstones on His outstretched wings and securing them from hurt.
The covenant is entered, not by merit nor by works. There was neither the one nor the other in that race of slaves; but they stood there simply because of their relationship to the Friend of God. So we enter the blessed safety of the better covenant, through our relationship with the Lord Jesus, who is the Beloved of the Father, the one glorious and blessed Man. Without beauty or merit, the soul attaches itself by faith to Him, and discovers that it was loved before the worlds were made.
Ah, blessed Lover of souls, we see how the storm swept Thy heart, that it might never touch us. Thou art our hiding-place, our shield, our deliverer, our strong tower. Without dismay we Can anticipate the storms of death, judgment, and eternity, sure that wherever Thou art there can be no hail.