1 Corinthians 14:26-28

What then, brethren, is [the right course]? When you meet together, each one has a hymn, a teaching, a disclosure of special knowledge or information, an utterance in a [strange] tongue, or an interpretation of it. [But] let everything be constructive and edifying and for the good of all. If some speak in a [strange] tongue, let the number be limited to two or at the most three, and each one [taking his] turn, and let one interpret and explain [what is said]. But if there is no one to do the interpreting, let each of them keep still in church and talk to himself and to God.