Leviticus 26:16

26:16 I also will do this unto you; I will even appoint over you terror, consumption, and the burning ague, that shall consume the eyes, and cause sorrow of heart: and ye shall sow your seed in vain, for your enemies shall eat it.

Leviticus 26:20

26:20 And your strength shall be spent in vain: for your land shall not yield her increase, neither shall the trees of the land yield their fruits.