So likewise you, except you utter by the tongue words easy to be understood, how shall it be known what is spoken? for you shall speak into the air.
All Commentaries on 1 Corinthians 14:9 Go To 1 Corinthians 14
Cornelius a Lapide
AD 1637
So likewise ye . . . how shall it be known what is spoken. For the tongue is the stamp, the image, the index, and messenger of the mind. As Aristotle says (Peri Hermen. lib. ii.), "words are signs of the feelings which lie concealed in the soul." Hence Socrates used to determine the mind and character of any one from his voice, and would say, "Speak, young Prayer of Manasseh , that I may see you." But this cannot be if the language of the speaker is unknown to the hearer.