When Israel went forth out of Egypt, the house of Jacob from a people of foreign language;
Yahweh will bring a nation against you from far, from the end of the earth, as the eagle flies; a nation whose language you shall not understand;
Behold, I will bring a nation on you from far, house of Israel," says Yahweh. "It is a mighty nation. It is an ancient nation, a nation whose language you don't know, neither understand what they say.
But he will speak to this nation with stammering lips and in another language;
1 Corinthians 14:21
In the law it is written, "By men of strange languages and by the lips of strangers I will speak to this people. Not even thus will they hear me, says the Lord."
You will no longer see the fierce people, a people of a deep speech that you can't comprehend, with a strange language that you can't understand.
For you are not sent to a people of a strange speech and of a hard language, but to the house of Israel; not to many peoples of a strange speech and of a hard language, whose words you can not understand. Surely, if I sent you to them, they would listen to you.