Ezekiel 3:7-9

But the people of Israel will not be willing to listen to you, because they are not willing to listen to me. Yes, all the people of Israel are stubborn and will not obey. See, I now make you as stubborn and as hard as they are. I am making you as hard as a diamond, harder than stone. Don’t be afraid of them or be frightened by them, though they are a people who turn against me.”