5 For you are not sent to a people of foreign speech and a hard language, but to the house of Israel— 6 not to many peoples of foreign speech and a hard language, whose words you cannot understand. Surely, if I sent you to such, they would listen to you. 7 But the house of Israel will not be willing to listen to you, for they are not willing to listen to me: because all the house of Israel have a hard forehead and a stubborn heart.