Leviticus 26:12

8 Five of you will pursue a hundred, and a hundred of you will pursue ten thousand, and your enemies will fall by the sword before you.

9 I will turn toward you and make you fruitful and multiply you, and I will establish My covenant with you.

10 You will still be eating the old supply of grain when you need to clear it out to make room for the new.

11 And I will make My dwelling place among you, and My soul will not despise you.

12 I will walk among you and be your God, and you will be My people.

13 I am the LORD your God, who brought you out of the land of Egypt so that you would no longer be slaves to the Egyptians. I broke the bars of your yoke and enabled you to walk in uprightness.

14 If, however, you fail to obey Me and to carry out all these commandments,

15 and if you reject My statutes, despise My ordinances, and neglect to carry out all My commandments, and so break My covenant,

16 then this is what I will do to you: I will bring upon you sudden terror, wasting disease, and fever that will destroy your sight and drain your life. You will sow your seed in vain, because your enemies will eat it.

Read all of Leviticus 26