Ezekiel 3:6

not to many people of a strange speech and of an hard language, so that the learning of a number of languages and dialects would increase tile difficulties of communication and therefore of proclaiming the Lord's will, whose words thou canst not understand. Surely, had I sent thee to them, they, in spite of all the obstacles and hindrances just enumerated, would have hearkened unto thee, showing less obstinacy and thus a corresponding greater interest in the prophet's message than the members of his own people.