Isaiah 28:11
For by people of strange lips and with a foreign tongue the LORD will speak to this people,
1 Corinthians 14:21
In the Law it is written, "By people of strange tongues and by the lips of foreigners will I speak to this people, and even then they will not listen to me, says the Lord."
Deuteronomy 28:49
The LORD will bring a nation against you from far away, from the end of the earth, swooping down like the eagle, a nation whose language you do not understand,
Isaiah 33:19
You will see no more the insolent people, the people of an obscure speech that you cannot comprehend, stammering in a tongue that you cannot understand.
Jeremiah 5:15
Behold, I am bringing against you a nation from afar, O house of Israel, declares the LORD. It is an enduring nation; it is an ancient nation, a nation whose language you do not know, nor can you understand what they say.