Proverbs 14:6

14:6 The scorner seeks wisdom but finds none,

but understanding is easy for a discerning person.

Proverbs 20:20

20:20 The one who curses his father and his mother,

his lamp will be extinguished in the blackest darkness.

Proverbs 30:10-11

30:10 Do not slander a servant to his master,

lest he curse you, and you are found guilty.

30:11 There is a generation who curse their fathers

and do not bless their mothers.