And the angel of the Lord was seen by him in a flame of fire coming out of a thorn-tree: and he saw that the tree was on fire, but it was not burned up.

For all the face of the earth was covered with them, so that the land was black; and every green plant and all the fruit of the trees which was untouched by the ice-storm they took for food: not one green thing, no plant or tree, was to be seen in all the land of Egypt.