Ezekiel 3:7 (KJV)

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

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.

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

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

Not to many people of a strange speech and of an hard language, whose words thou canst not understand. Surely, had I sent thee to them, they would have hearkened unto thee.

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

As an adamant harder than flint have I made thy forehead: fear them not, neither be dismayed at their looks, though they be a rebellious house.

Moreover he said unto me, Son of man, all my words that I shall speak unto thee receive in thine heart, and hear with thine ears.

And go, get thee to them of the captivity, unto the children of thy people, and speak unto them, and tell them, Thus saith the Lord GOD; whether they will hear, or whether they will forbear.

Then the spirit took me up, and I heard behind me a voice of a great rushing, saying, Blessed be the glory of the LORD from his place.