A. Because of sin or disobedience:

JER 5:25. Your iniquities have turned away these things, and your sins have withholden good things from you.

PSA 81:15. The haters of the LORD should have submitted themselves unto him: but their time should have endured for ever.

PSA 81:16. He should have fed them also with the finest of the wheat: and with honey out of the rock should I have satisfied thee.

JAM 4:3. Ye ask, and receive not, because ye ask amiss, that ye may consume it upon your lusts.

B. Lack of faith or failure to ask the Lord:

JAM 4:2. Ye lust, and have not: ye kill, and desire to have, and cannot obtain: ye fight and war, yet ye have not, because ye ask not.

JAM 1:6. But let him ask in faith, nothing wavering. For he that wavereth is like a wave of the sea driven with the wind and tossed.

JAM 1:7. For let not that man think that he shall receive any thing of the Lord.

C. Laziness:

2TH 3:10. For even when we were with you, this we commanded you, that if any would not work, neither should he eat.

PRO 13:4. The soul of the sluggard desireth, and hath nothing: but the soul of the diligent shall be made fat.

PRO 20:4. The sluggard will not plow by reason of the cold; therefore shall he beg in harvest, and have nothing.

PRO 21:25. The desire of the slothful killeth him; for his hands refuse to labour.

PRO 23:21. For the drunkard and the glutton shall come to poverty: and drowsiness shall clothe a man with rags.

D. To keep us dependent upon God & His supply:

DEU 31:20. For when I shall have brought them into the land which I sware unto their fathers, that floweth with milk and honey; and they shall have eaten and filled themselves, and waxen fat; then will they turn unto other gods, and serve them, and provoke me, and break my covenant.

PRO 30:8. Remove far from me vanity and lies: give me neither poverty nor riches; feed me with food convenient for me:

PRO 30:9. Lest I be full, and deny thee, and say, Who is the LORD? or lest I be poor, and steal, and take the name of my God in vain.

1TI 6:10. For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.

1TI 6:17. Charge them that are rich in this world, that they be not highminded, nor trust in uncertain riches, but in the living God, who giveth us richly all things to enjoy;

REV 3:17. Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked:

REV 3:18. I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see.

REV 3:19. As many as I love, I rebuke and chasten: be zealous therefore, and repent.

E. To show us that it's time to move:

1KI 17:7. And it came to pass after a while, that the brook dried up, because there had been no rain in the land.

1KI 17:8. And the word of the LORD came unto him, saying,

1KI 17:9. Arise, get thee to Zarephath, which belongeth to Zidon, and dwell there: behold, I have commanded a widow woman there to sustain thee.

GEN 26:1. And there was a famine in the land, beside the first famine that was in the days of Abraham. And Isaac went unto Abimelech king of the Philistines unto Gerar.

GEN 26:2. And the LORD appeared unto him, and said, Go not down into Egypt; dwell in the land which I shall tell thee of:

GEN 26:3. Sojourn in this land, and I will be with thee, and will bless thee; for unto thee, and unto thy seed, I will give all these countries, and I will perform the oath which I sware unto Abraham thy father;

GEN 45:6. For these two years hath the famine been in the land: and yet there are five years, in the which there shall neither be earing nor harvest.

GEN 45:7. And God sent me before you to preserve you a posterity in the earth, and to save your lives by a great deliverance.

GEN 45:8. So now it was not you that sent me hither, but God: and he hath made me a father to Pharaoh, and lord of all his house, and a ruler throughout all the land of Egypt.

GEN 45:9. Haste ye, and go up to my father, and say unto him, Thus saith thy son Joseph, God hath made me lord of all Egypt: come down unto me, tarry not:

GEN 45:10. And thou shalt dwell in the land of Goshen, and thou shalt be near unto me, thou, and thy children, and thy children's children, and thy flocks, and thy herds, and all that thou hast:

GEN 45:11. And there will I nourish thee; for yet there are five years of famine; lest thou, and thy household, and all that thou hast, come to poverty.

RTH 1:1. Now it came to pass in the days when the judges ruled, that there was a famine in the land. And a certain man of Bethlehemjudah went to sojourn in the country of Moab, he, and his wife, and his two sons.

RTH 1:2. And the name of the man was Elimelech, and the name of his wife Naomi, and the name of his two sons Mahlon and Chilion, Ephrathites of Bethlehemjudah. And they came into the country of Moab, and continued there.

RTH 1:3. And Elimelech Naomi's husband died; and she was left, and her two sons.

RTH 1:4. And they took them wives of the women of Moab; the name of the one was Orpah, and the name of the other Ruth: and they dwelled there about ten years.

RTH 1:5. And Mahlon and Chilion died also both of them; and the woman was left of her two sons and her husband.

RTH 1:6. Then she arose with her daughters in law, that she might return from the country of Moab: for she had heard in the country of Moab how that the LORD had visited his people in giving them bread.

RTH 1:16. And Ruth said, Intreat me not to leave thee, or to return from following after thee: for whither thou goest, I will go; and where thou lodgest, I will lodge: thy people shall be my people, and thy God my God:

RTH 1:17. Where thou diest, will I die, and there will I be buried: the LORD do so to me, and more also, if ought but death part thee and me.

RTH 1:18. When she saw that she was stedfastly minded to go with her, then she left speaking unto her.

2KI 8:1. Then spake Elisha unto the woman, whose son he had restored to life, saying, Arise, and go thou and thine household, and sojourn wheresoever thou canst sojourn: for the LORD hath called for a famine; and it shall also come upon the land seven years.