Isaiah 28:11
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."
Deuteronomy 28:49
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;
Isaiah 33:19
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.
Jeremiah 5:15
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.