1 Corinthians 14:20-22 New International Version Anglicized (NIVUK)

20. Brothers and sisters, stop thinking like children. In regard to evil be infants, but in your thinking be adults.

21. In the Law it is written:‘With other tonguesand through the lips of foreignersI will speak to this people,but even then they will not listen to me,says the Lord.’

22. Tongues, then, are a sign, not for believers but for unbelievers; prophecy, however, is not for unbelievers but for believers.

1 Corinthians 14