Deuteronomy 11:26-28

Darby(i) 26 See, I set before you this day a blessing and a curse: 27 a blessing, if ye obey the commandments of Jehovah your God, which I command you this day; 28 and a curse, if ye will not obey the commandments of Jehovah your God, but turn aside out of the way which I command you this day, to go after other gods which ye have not known.