Deuteronomy 11:28

and the curse if ye will not hear 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.

Deuteronomy 28:15-68

And it shall come to pass if thou wilt not hearken unto the voice of the LORD thy God, to keep, to do all his commandments and his statutes which I command thee today, that all these curses shall come upon thee and overtake thee.

Leviticus 26:14-32

But if ye will not hearken unto me and will not do all these my commandments;

Deuteronomy 29:19-28

and it shall be, when that one hears the words of this curse, that he blesses himself in his heart, saying, I shall have peace, though I walk in the imagination of my heart, to add drunkenness to thirst.

Isaiah 1:20

But if ye refuse and rebel, ye shall be devoured with the sword; for the mouth of the LORD has spoken it.

Isaiah 3:11

Woe unto the wicked! It shall be ill with him, for according to the work of his hands it shall be done unto him.

Matthew 25:41

Then he shall also say unto those who shall be on the left hand, Depart from me, ye cursed, into eternal fire, prepared for the devil and his angels;

Romans 2:8-9

but unto those that are contentious and do not obey the truth, but are persuaded by unrighteousness, indignation and wrath.

Galatians 3:10

For as many as are of the works of the law are under the curse; for it is written, Cursed is every one that continues not in all things which are written in the book of the law to do them.

Treasury of Scripture Knowledge

Summary

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.

Bible References

General references

Deuteronomy 28:15
And it shall come to pass if thou wilt not hearken unto the voice of the LORD thy God, to keep, to do all his commandments and his statutes which I command thee today, that all these curses shall come upon thee and overtake thee.
Deuteronomy 29:19
and it shall be, when that one hears the words of this curse, that he blesses himself in his heart, saying, I shall have peace, though I walk in the imagination of my heart, to add drunkenness to thirst.
Leviticus 26:14
But if ye will not hearken unto me and will not do all these my commandments;
Isaiah 1:20
But if ye refuse and rebel, ye shall be devoured with the sword; for the mouth of the LORD has spoken it.
Isaiah 3:11
Woe unto the wicked! It shall be ill with him, for according to the work of his hands it shall be done unto him.
Matthew 25:41
Then he shall also say unto those who shall be on the left hand, Depart from me, ye cursed, into eternal fire, prepared for the devil and his angels;
Romans 2:8
but unto those that are contentious and do not obey the truth, but are persuaded by unrighteousness, indignation and wrath.
Galatians 3:10
For as many as are of the works of the law are under the curse; for it is written, Cursed is every one that continues not in all things which are written in the book of the law to do them.