Ezekiel 3:8

5 For, not unto a people deep of lip and heavy of tongue [art] thou sent -- unto the house of Israel;

6 not unto many peoples, deep of lip and heavy of tongue, whose words thou dost not understand. If I had not sent thee unto them -- they, they do hearken unto thee,

7 but the house of Israel are not willing to hearken unto thee, for they are not willing to hearken unto Me, for all the house of Israel are brazen-faced and strong-hearted.

8 `Lo, I have made thy face strong against their face, and thy forehead strong against their forehead.

9 As an adamant harder than a rock I have made thy forehead; thou dost not fear them, nor art thou affrighted before them, for a rebellious house [are] they.`

10 And He saith unto me, `Son of man, all My words, that I speak unto thee, receive with thy heart, and with thine ears hear;

11 and go, enter in unto the Removed, unto the sons of thy people, and thou hast spoken unto them, and hast said unto them: Thus said the Lord Jehovah: whether they hear, or whether they forbear.`