Deuteronomy 11:8-17 New Revised Standard Version (NRSV)
8 Keep, then, this entire commandment that I am commanding you today, so that you may have strength to go in and occupy the land that you are crossing over to occupy, 9 and so that you may live long in the land that the Lord swore to your ancestors to give them and to their descendants, a land flowing with milk and honey. 10 For the land that you are about to enter to occupy is not like the land of Egypt, from which you have come, where you sow your seed and irrigate by foot like a vegetable garden. 11 But the land that you are crossing over to occupy is a land of hills and valleys, watered by rain from the sky, 12 a land that the Lord your God looks after. The eyes of the Lord your God are always on it, from the beginning of the year to the end of the year.
13 If you will only heed his every commandment[a] that I am commanding you today—loving the Lord your God, and serving him with all your heart and with all your soul— 14 then he[b] will give the rain for your land in its season, the early rain and the later rain, and you will gather in your grain, your wine, and your oil; 15 and he[c] will give grass in your fields for your livestock, and you will eat your fill. 16 Take care, or you will be seduced into turning away, serving other gods and worshiping them, 17 for then the anger of the Lord will be kindled against you and he will shut up the heavens, so that there will be no rain and the land will yield no fruit; then you will perish quickly off the good land that the Lord is giving you.