Deuteronomy 11:10-11:21

For the land that you are about to enter and possess is not like the land of Egypt from which you have come. There the grain you sowed had to be watered by your own labors, like a vegetable garden; but the land you are about to cross into and possess, a land of hills and valleys, soaks up its water from the rains of heaven. It is a land which the Lord your God looks after, on which the Lord your God always keeps His eye, from year's beginning to year's end. If, then, you obey the commandments that I enjoin upon you this day, loving the Lord your God and serving Him with all your heart and soul, I will grant the rain for your land in season, the early rain and the late. You shall gather in your new grain and wine and oil--I will also provide grass in the fields for your cattle--and thus you shall eat your fill. Take care not to be lured away to serve other gods and bow to them. For the Lord's anger will flare up against you, and He will shut up the skies so that there will be no rain and the ground will not yield its produce; and you will soon perish from the good land that the Lord is assigning to you. Therefore impress these My words upon your very heart: bind them as a sign on your hand and let them serve as a symbol on your forehead, and teach them to your children--reciting them when you stay at home and when you are away, when you lie down and when you get up; and inscribe them on the doorposts of your house and on your gates--to the end that you and your children may endure, in the land that the Lord swore to your fathers to assign to them, as long as there is a heaven over the earth.