This is kind of a bizarre and maybe silly question but what does this verse mean?

Ezekiel 3:5-6

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

6 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.