Deuteronomy 5:11

5:11 You must not make use of the name of the Lord your God for worthless purposes, for the Lord will not exonerate anyone who abuses his name that way.

Deuteronomy 28:33

28:33 As for the produce of your land and all your labor, a people you do not know will consume it, and you will be nothing but oppressed and crushed for the rest of your lives.