1 Corinthians 14:21-22

1 Corinthians 14:21-22 ESV

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.” Thus tongues are a sign not for believers but for unbelievers, while prophecy is a sign not for unbelievers but for believers.
ESV: English Standard Version 2016