Deuteronomy 11:13

9 and so that you may live long in the land that the LORD swore to your fathers to give them and their descendants, a land flowing with milk and honey.

10 For the land that you are entering to possess is not like the land of Egypt, from which you have come, where you sowed your seed and irrigated on foot, like a vegetable garden.

11 But the land that you are crossing the Jordan to possess is a land of mountains and valleys that drinks in the rain from heaven.

12 It is a land for which the LORD your God cares; the eyes of the LORD your God are always on it, from the beginning to the end of the year.

13 So if you carefully obey the commandments I am giving you today, to love the LORD your God and to serve Him with all your heart and with all your soul,

14 then I will provide rain for your land in season, the autumn and spring rains, that you may gather your grain, new wine, and oil.

15 And I will provide grass in the fields for your livestock, and you will eat and be satisfied.

16 But be careful that you are not enticed to turn aside to worship and bow down to other gods,

17 or the anger of the LORD will be kindled against you. He will shut the heavens so that there will be no rain, nor will the land yield its produce, and you will soon perish from the good land that the LORD is giving you.

Read all of Deuteronomy 11