Jeremiah 9:4-9 NIV

[4] “Beware of your friends; do not trust anyone in your clan. For every one of them is a deceiver, and every friend a slanderer. [5] Friend deceives friend, and no one speaks the truth. They have taught their tongues to lie; they weary themselves with sinning. [6] You live in the midst of deception; in their deceit they refuse to acknowledge me,” declares the LORD. [7] Therefore this is what the LORD Almighty says: “See, I will refine and test them, for what else can I do because of the sin of my people? [8] Their tongue is a deadly arrow; it speaks deceitfully. With their mouths they all speak cordially to their neighbors, but in their hearts they set traps for them. [9] Should I not punish them for this?” declares the LORD. “Should I not avenge myself on such a nation as this?”