1 Corinthians 14:27 in the King James Version
If any man speak in an unknown tongue, let it be by two, or at the most by three, and that by course; and let one interpret.
Context
26 What is it then, brothers? When you come together, each one of you has a psalm, has a teaching, has a revelation, has another language, or has an interpretation. Let all things be done to build each other up.
27 If any man speaks in another language, let there be two, or at the most three, and in turn; and let one interpret.
28 But if there is no interpreter, let him keep silent in the assembly, and let him speak to himself and to God.