Ezekiel 3:8-10

8Behold, I have made your face as hard as their faces and your forehead as hard as their foreheads.

9I have made your forehead like emery (diamond), harder than flint. Do not be afraid of them or be dismayed before them, though they are a rebellious house.”

10Moreover, He said to me, “Son of man, receive into your heart all My words which I will speak to you and hear with your ears (listen closely).