Deuteronomy 8:1-10

“Carefully follow every command I am giving you today, so that you may live and increase, and may enter and take possession of the land  the LORD swore to your ancestors. Remember that the LORD your God led you on the entire journey these forty years in the wilderness, so that he might humble you and test you to know what was in your heart, whether or not you would keep his commands. He humbled you by letting you go hungry; then he gave you manna to eat, which you and your ancestors had not known, so that you might learn that man does not live on bread alone but on every word that comes from the mouth of the LORD.  Your clothing did not wear out, and your feet did not swell these forty years.  Keep in mind that the LORD your God has been disciplining you just as a man disciplines his son. So keep the commands of the LORD your God by walking in his ways and fearing him. For the LORD your God is bringing you into a good land,  a land with streams, springs, and deep water sources, flowing in both valleys and hills; a land of wheat, barley, vines, figs, and pomegranates; a land of olive oil and honey; a land where you will eat food without shortage, where you will lack nothing; a land whose rocks are iron and from whose hills you will mine copper. When you eat and are full,  you will bless the LORD your God for the good land  he has given you.