Suppose the whole church meets together and you all speak in {different} languages. If some people come in that are without understanding or don't believe, then those people will say you are crazy.
But suppose you are all prophesying F101 and a person comes in that does not believe or a person without understanding comes in. If you are all prophesying, then that person's sin will be shown to him, and he will be judged by all the things you say.
So, brothers and sisters, what should you do? When you meet together, one person has a song, another person has a teaching, another person has a new truth from God, another person speaks in a {different} language, and another person interprets that language. The purpose of all these things should be to help {the church} grow strong.