Deuteronomy 11:28

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.

Deuteronomy 28:15-68

But it shall come to pass, if thou wilt not hearken unto the voice of Jehovah thy God, to observe to do all his commandments and his statutes which I command thee this day, 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 commandments;

Deuteronomy 29:19-28

and it come to pass, when he heareth the words of this curse, that he bless himself in his heart, saying, I shall have peace, though I walk in the stubbornness of my heart, to destroy the moist with the dry.

Isaiah 1:20

but if ye refuse and rebel, ye shall be devoured with the sword; for the mouth of Jehovah hath spoken it.

Isaiah 3:11

Woe unto the wicked! it shall be ill with him ; for what his hands have done shall be done unto him.

Matthew 25:41

Then shall he say also unto them on the left hand, Depart from me, ye cursed, into the eternal fire which is prepared for the devil and his angels:

Romans 2:8-9

but unto them that are factious, and obey not the truth, but obey unrighteousness,'shall be wrath and indignation,

Galatians 3:10

For as many as are of the works of the law are under a curse: for it is written, Cursed is every one who continueth not in all things that 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
But it shall come to pass, if thou wilt not hearken unto the voice of Jehovah thy God, to observe to do all his commandments and his statutes which I command thee this day, that all these curses shall come upon thee, and overtake thee.
Deuteronomy 29:19
and it come to pass, when he heareth the words of this curse, that he bless himself in his heart, saying, I shall have peace, though I walk in the stubbornness of my heart, to destroy the moist with the dry.
Leviticus 26:14
But if ye will not hearken unto me, and will not do all these commandments;
Isaiah 1:20
but if ye refuse and rebel, ye shall be devoured with the sword; for the mouth of Jehovah hath spoken it.
Isaiah 3:11
Woe unto the wicked! it shall be ill with him ; for what his hands have done shall be done unto him.
Matthew 25:41
Then shall he say also unto them on the left hand, Depart from me, ye cursed, into the eternal fire which is prepared for the devil and his angels:
Romans 2:8
but unto them that are factious, and obey not the truth, but obey unrighteousness,'shall be wrath and indignation,
Galatians 3:10
For as many as are of the works of the law are under a curse: for it is written, Cursed is every one who continueth not in all things that are written in the book of the law, to do them.

American Standard Version Public Domain