1 Corinthians 14:9

New English Translation

It is the same for you. If you do not speak clearly with your tongue, how will anyone know what is being said? For you will be speaking into the air.

Cross References

1 Corinthians 14:10

There are probably many kinds of languages in the world, and none is without meaning.

1 Corinthians 9:26

So I do not run uncertainly or box like one who hits only air.