In Context

3 And they bend their tongue, their bow of falsehood, and not for fidelity are they valiant in the land; for they proceed from evil to evil, and they know not me, saith Jehovah.

4 Take ye heed every one of his friend, and confide not in any brother; for every brother only supplanteth, and every friend goeth about with slander.

5 And they act deceitfully every one with his neighbour, and speak not the truth: they teach their tongue to speak falsehood, they weary themselves with perverse dealing.

6 Thy habitation is in the midst of deceit; through deceit they refuse to know me, saith Jehovah.

7 Therefore thus saith Jehovah of hosts: Behold, I will melt them, and try them; for how else could I do for the daughter of my people?

8 Their tongue is a murderous arrow; it speaketh deceit. A man speaketh peaceably to his neighbour with his mouth, but in his heart he layeth his ambush.

Jeremiah 9:6 in Other Translations