Deuteronomy 11:28

And a curse, if ye will not obey the commandments of the LORD your God, but turn aside from 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 to the voice of the LORD 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 to me, and will not do all these commandments;

Deuteronomy 29:19-28

And it should come to pass, when he heareth the words of this curse, that he should bless 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 hath spoken it.

Isaiah 3:11

Woe to the wicked! it shall be ill with him: for the reward of his hands shall be given him.

Matthew 25:41

Then will he say also to them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:

Romans 2:8-9

But to them that are contentious, and do not obey the truth, but obey 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, Accursed is every one that continueth 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
But it shall come to pass, if thou wilt not hearken to the voice of the LORD 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 should come to pass, when he heareth the words of this curse, that he should bless 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 to 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 the LORD hath spoken it.
Isaiah 3:11
Woe to the wicked! it shall be ill with him: for the reward of his hands shall be given him.
Matthew 25:41
Then will he say also to them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:
Romans 2:8
But to them that are contentious, and do not obey the truth, but obey 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, Accursed is every one that continueth not in all things which are written in the book of the law to do them.