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

Genesis 12:3
And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed.

Genesis 27:29
Let people serve thee, and nations bow down to thee: be lord over thy brethren, and let thy mother's sons bow down to thee: cursed be every one that curseth thee, and blessed be he that blesseth thee.

Exodus 21:17
And he that curseth his father, or his mother, shall surely be put to death.

Leviticus 20:9
For every one that curseth his father or his mother shall be surely put to death: he hath cursed his father or his mother; his blood shall be upon him.

Leviticus 24:15
And thou shalt speak unto the children of Israel, saying, Whosoever curseth his God shall bear his sin.

Numbers 24:9
He couched, he lay down as a lion, and as a great lion: who shall stir him up? Blessed is he that blesseth thee, and cursed is he that curseth thee.

Proverbs 20:20
Whoso curseth his father or his mother, his lamp shall be put out in obscure darkness.

Proverbs 30:11
There is a generation that curseth their father, and doth not bless their mother.