Jeremiah 7:23-29 New Revised Standard Version (NRSV)
23 But this command I gave them, “Obey my voice, and I will be your God, and you shall be my people; and walk only in the way that I command you, so that it may be well with you.” 24 Yet they did not obey or incline their ear, but, in the stubbornness of their evil will, they walked in their own counsels, and looked backward rather than forward. 25 From the day that your ancestors came out of the land of Egypt until this day, I have persistently sent all my servants the prophets to them, day after day; 26 yet they did not listen to me, or pay attention, but they stiffened their necks. They did worse than their ancestors did.
27 So you shall speak all these words to them, but they will not listen to you. You shall call to them, but they will not answer you. 28 You shall say to them: This is the nation that did not obey the voice of the Lord their God, and did not accept discipline; truth has perished; it is cut off from their lips.
29 Cut off your hair and throw it away;