Deuteronomy 11:8-17

That you may keep all his commandments, which I command you this day: and may go in, and possess the land, to which you are entering: And may live in it a long time. Which the Lord promised by oath to your fathers, and to their seed: a land which floweth with milk and honey. For the land, which thou goest to possess, is not like the land of Egypt, from whence thou camest out: where, when the seed is sown, waters are brought in to water it after the manner of gardens. But it is a land of hills and plains, expecting rain from heaven. And the Lord thy God doth always visit it: and his eyes are on it from the beginning of the year unto the end thereof. If then you obey my commandments, which I command you this day, that you love the Lord your God, and serve him with all your heart, and with all your soul: He will give to your land the early rain and the latter rain, that you may gather in your corn, and your wine, and your oil, And your hay out of the fields to feed your cattle: and that you may eat and be filled. Beware lest perhaps your heart be deceived: and you depart from the Lord, and serve strange gods, and adore them. And the Lord being angry shut up heaven, that the rain come not down, nor the earth yield her fruit: and you perish quickly from the excellent land, which the Lord will give you.