Jeremiah 9:4-6

New Catholic Bible

⁴ Each of you should be on guard against your neighbor
    and place no trust in a brother.
For everyone seeks to supplant his brother, as Jacob did,
    and every friend is a slanderer.
⁵ They all deceive each other;
    no one speaks the truth.
They have trained their tongues in the art of lying;
    immersed in iniquity, they cannot repent.
⁶ With their repeated acts of oppression and deceit,
    they refuse to acknowledge me, says the Lord.