Isaiah 48:4

4Because I know that ayou are obstinate,
and your neck is an iron sinew
and your forehead brass,

Jeremiah 5:3

3O Lord, do not your eyes look for truth?
bYou have struck them down,
but they felt no anguish;
you have consumed them,
but they refused to take correction.
cThey have made their faces harder than rock;
they have refused to repent.

Zechariah 7:12

12 dThey made their hearts diamond-hard elest they should hear the law and the words that the Lord of hosts had sent fby his Spirit through gthe former prophets. hTherefore great anger came from the Lord of hosts.
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