Deuteronomy 8:10, 19
Deuteronomy 8:10 ASV
And thou shalt eat and be full, and thou shalt bless Jehovah thy God for the good land which he hath given thee.
Deuteronomy 8:19 ASV
And it shall be, if thou shalt forget Jehovah thy God, and walk after other gods, and serve them, and worship them, I testify against you this day that ye shall surely perish.