Deuteronomy 28:32-34

MLV(i) 32 Your sons and your daughters will be given to another people. And your eyes will look and fail with longing for them all the day and there will be nothing in the power of your hand. 33 The fruit of your ground and all your labors, will a nation eat up which you do not know. And you will only be oppressed and crushed always, 34 so that you will be mad because of the sight of your eyes which you will see.