Jeremiah 9:7-9

New Catholic Bible

⁷ Therefore, thus says the Lord of hosts:
    Now I will refine and test them.
    How else should I deal with this people?
⁸ Their tongue is a deadly arrow;
    their mouth utters words of deceit.
They speak cordially with their neighbors,
    but inwardly, they are plotting to ambush them.
⁹ For such deceitful dealings
    shall I not punish them, says the Lord,
and shall I not exact vengeance
    on such a nation?