And it will cover the eye of all the earth, and the land will be dark; and it will eat every green herb of the land, and all the fruit of the tree which the hail left: and not a green thing was left in the tree, and in the green herb of the field, in all the land of Egypt

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.

You are to observe the Festival of Harvest, celebrating the first fruits of your work in planting the field, and the Festival of Tabernacles at the end of the year, when you gather the fruit of your work from the field.