Ezekiel 3:5

2 So I opened my mouth, and he caused me to eat the roll.

3 And he said unto me, Son of man, cause thy belly to eat, and fill thy bowels with this roll that I give thee. Then did I eat it; and it was in my mouth as honey for sweetness.

4 And he said unto me, Son of man, go, get thee unto the house of Israel, and speak with my words unto them.

5 For thou art not sent to a people of a strange speech and of a hard language, but to the house of Israel;

6 not to many peoples of a strange speech and of a hard language, whose words thou canst not understand. Surely, if I sent thee to them, they would hearken unto thee.

7 But the house of Israel will not hearken unto thee; for they will not hearken unto me: for all the house of Israel are of hard forehead and of a stiff heart.

8 Behold, I have made thy face hard against their faces, and thy forehead hard against their foreheads.