1 Corinthians 14:10

8 Again, if the trumpet sounds a muffled call, who will prepare for battle?

9 So it is with you. Unless you speak intelligible words with your tongue, how will anyone know what you are saying? You will just be speaking into the air.

Assuredly, there are many different languages in the world, yet none of them is without meaning.

11 If, then, I do not know the meaning of someone’s language, I am a foreigner to the speaker, and he is a foreigner to me.

12 It is the same with you. Since you are eager to have spiritual gifts, strive to excel in gifts that build up the church.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Assuredly, there are many different languages in the world, yet none of them is without meaning.
KJV
There are, it may be, so many kinds of voices in the world, and none of them is without signification.
WEB
There are, it may be, so many kinds of languages in the world, and none of them is without meaning.
ASV
There are, it may be, so many kinds of voices in the world, and no [kind] is without signification.
DARBY
There are, it may be, so many kinds of voices in the world, and none of undistinguishable sound.
BLB
There are, if it may be, so many kinds of voices in the world, and none without meaning.
ÅB
Så mange slags språk er det nå visst i verden, og det er intet av dem som ikke har sin betydning;
OTB
Det er, kanskje, mange slags språk i verden, og ingen av dem er uten mening.
B1930
Så mange slags sprog er det nu visst i verden, og det er intet av dem som ikke har sin betydning;

Study notes (Tyndale)

Original text and word study