1 Corinthians 5:6; 1 Corinthians 12:17; 1 Corinthians 14:23
Your boasting is not good. Do you not know that a little leaven leavens the whole lump of dough?
If the whole body were an eye, where would the hearing be? If the whole were hearing, where would the sense of smell be?
Therefore if the whole church assembles together and all speak in tongues, and ungifted men or unbelievers enter, will they not say that you are mad?