7. Here are some examples. Certain objects make sounds. Take a flute or a harp. No one will know what the tune is unless different notes are played.
8. Also, if the trumpet call isn't clear, who will get ready for battle?
9. It's the same with you. You must speak words that people understand. If you don't, no one will know what you are saying. You will just be speaking into the air.
10. It is true that there are all kinds of languages in the world. And they all have meaning.
11. But if I don't understand what someone is saying, I am a stranger to that person. And that person is a stranger to me.
12. It's the same with you. You want to have gifts of the Spirit. So try to do your best in using gifts that build up the church.
13. For that reason, those who speak in languages they had not known before should pray that they can explain what they say.
14. If I pray in another language, my spirit prays. But my mind does not pray.