哥林多前書 14:9

你們也是如此。舌頭若不說容易明白的話，怎能知道所說的是甚麼呢？這就是向空說話了。

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.