哥林多前书 14:9

你们也是如此。舌头若不说容易明白的话，怎能知道所说的是什么呢？这就是向空说话了。

nǐ men yě shì rú cǐ 。 shé tou ruò bù shuō róng yì míng bái de huà ， zěn néng zhī dào suǒ shuō de shì shén me ne ？ zhè jiù shì xiàng kōng shuō huà le 。

So also you, unless you uttered by the tongue words easy to understand, how would it be known what is spoken? For you would be speaking into the air.