Ezekiel 3:4-8

Then He said to me, “Son of man, go to the house of Israel and speak with My words to them.

For you are not being sent to a people of unintelligible speech or difficult language, but to the house of Israel,

nor to many peoples of unintelligible speech or difficult language, whose words you cannot understand. But I have sent you to the people who understand you;

yet the house of Israel will not be willing to listen to you, since they are not willing to listen to Me. The entire house of Israel certainly is stubborn and obstinate.

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