Proverbs 18:2

18:2 A fool takes no pleasure in understanding

but only in disclosing what is on his mind.

Proverbs 19:3

19:3 A person’s folly subverts his way,

and his heart rages against the Lord.

Proverbs 28:14

28:14 Blessed is the one who is always cautious,

but whoever hardens his heart will fall into evil.