Jeremiah 9
3 Ref Their tongues are bent like a bow to send out false words: they have become strong in the land, but not for good faith: they go on from evil to evil, and they have no knowledge of me, says the Lord.
4 Ref Let everyone keep watch on his neighbour, and put no faith in any brother: for every brother will certainly be tricking his brother, and every neighbour will go about saying evil.
5 Ref Everyone will make sport of his neighbour with deceit, not saying what is true: their tongues have been trained to say false words; they are twisted, hating to come back.
6 Ref There is wrong on wrong, deceit on deceit; they have given up the knowledge of me, says the Lord.
7 Ref So the Lord of armies has said, See, I will make them soft in the fire and put them to the test; this I will do because of their evil-doing.
8 Ref His tongue is an arrow causing death; the words of his mouth are deceit: he says words of peace to his neighbour, but in his heart he is waiting secretly for him.