First Corinthians 14:14 states that when a person prays in tongues, he does not know what he is saying, since it is spoken in a language he does not know. Further, no one else can understand what is being said, unless there is an interpreter (1 Corinthians 14:27-28).
Zaidi ya hayo, hakuna mtu mwingine anaweza kuelewa kinachosemwa, isipokuwa kuwe mkalimani (1 Wakorintho 14:27-28).