but a curse if you disobey the commandments of the LORD your God and turn aside from the path I command you today by following other gods, which you have not known.
KJV
And a curse, if ye will not obey the commandments of the LORD 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.
ASV
and the curse, if ye shall not hearken unto 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.