Isaiah 33:19
The strong people thou seest not, A people deeper of lip than to be understood, Of a scorned tongue, there is no understanding.
Isaiah 28:11
For by scorned lip, and by another tongue, Doth He speak unto this people.
Deuteronomy 28:49-50
'Jehovah doth lift up against thee a nation, from afar, from the end of the earth, as the eagle it flieth; a nation whose tongue thou hast not heard,
Jeremiah 5:15
Lo, I am bringing against you a nation from afar, O house of Israel, an affirmation of Jehovah, A nation -- strong it is, a nation -- from of old it is, A nation -- thou knowest not its tongue, Nor understandest what it speaketh.
2 Kings 19:32
Therefore, thus said Jehovah, Concerning the king of Asshur: He doth not come in unto this city, Nor doth he shoot there an arrow, Nor doth he come before it with shield. Nor doth he pour out against it a mount.
Ezekiel 3:5-6
For, not unto a people deep of lip and heavy of tongue art thou sent -- unto the house of Israel;
Exodus 14:13
And Moses saith unto the people, 'Fear not, station yourselves, and see the salvation of Jehovah, which He doth for you to-day; for, as ye have seen the Egyptians to-day, ye add no more to see them -- to the age;
1 Corinthians 14:21
in the law it hath been written, that, 'With other tongues and with other lips I will speak to this people, and not even so will they hear Me, saith the Lord;'