Verses with the word curses in the Old Testament (8 verses):

Numbers 5:23
And the priest shall write these curses in a book, and he shall blot them out with the bitter water:

Deuteronomy 28:15
But it shall come to pass, if thou wilt not hearken unto 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 28:45
Moreover all these curses shall come upon thee, and shall pursue thee, and overtake thee, till thou be destroyed; because thou hearkenedst not unto the voice of the LORD thy God, to keep his commandments and his statutes which he commanded thee:

Deuteronomy 29:20
The LORD will not spare him, but then the anger of the LORD and his jealousy shall smoke against that man, and all the curses that are written in this book shall lie upon him, and the LORD shall blot out his name from under heaven.

Deuteronomy 29:21
And the LORD shall separate him unto evil out of all the tribes of Israel, according to all the curses of the covenant that are written in this book of the law:

Deuteronomy 29:27
And the anger of the LORD was kindled against this land, to bring upon it all the curses that are written in this book:

Deuteronomy 30:7
And the LORD thy God will put all these curses upon thine enemies, and on them that hate thee, which persecuted thee.

2 Chronicles 34:24
Thus saith the LORD, Behold, I will bring evil upon this place, and upon the inhabitants thereof, even all the curses that are written in the book which they have read before the king of Judah: