Jezekiel 3:5

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

Jezekiel 3:5 In-Context

3 thy mouth shall eat, and thy belly shall be filled with this volume that is given to thee. So I ate it; and it was in my mouth as sweet as honey.
4 And he said to me, Son of man, go thy way, and go in to the house of Israel, and speak my words to them.
5 For thou art not sent to a people of hard speech, to the house of Israel;
6 neither to many nations of other speech and other tongues, nor of harsh language, whose words thou wouldest not understand: although if I sent thee to such, they would have hearkened to thee.
7 But the house of Israel will not be willing to hearken to thee; for they will not hearken to me: for all the house of Israel are stubborn and hard-hearted.

The Brenton translation of the Septuagint is in the public domain.