Bible Cross References
as hard
Isaiah 48:4
I knew that you would prove to be stubborn, as rigid as iron and unyielding as bronze.
Jeremiah 5:3
Surely the LORD looks for faithfulness. He struck you, but you paid no attention; he crushed you, but you refused to learn. You were stubborn and would not turn from your sins.
Zechariah 7:12
and made their hearts as hard as rock. Because they would not listen to the teaching which I sent through the prophets who lived long ago, I became very angry.