Acts 2:4-11

and they were all filled with the holy Spirit ??they began to speak in foreign tongues, as the Spirit enabled them to express themselves.

1 Corinthians 14:2-11

For he who speaks in a 'tongue' addresses God not men; no one understands him; he is talking of divine secrets in the Spirit.

1 Corinthians 14:23

Hence if at a gathering of the whole church everybody speaks with 'tongues,' and if outsiders or un believers come in, will they not say you are insane?

Treasury of Scripture Knowledge

Summary

Go to, let us go down, and there confound their language, that they may not understand one another's speech.

Confound

Bible References

Confound

Acts 2:4
and they were all filled with the holy Spirit ??they began to speak in foreign tongues, as the Spirit enabled them to express themselves.

May

1 Corinthians 14:2
For he who speaks in a 'tongue' addresses God not men; no one understands him; he is talking of divine secrets in the Spirit.