Cross reference
1 Corinthians 14:27
27 If any man speaketh in a tongue, `let it be' by two, or at the most three, and `that' in turn; and let one interpret:
1 Corinthians 14:26
26 What is it then, brethren? When ye come together, each one hath a psalm, hath a teaching, hath a revelation, hath a tongue, hath an interpretation. Let all things be done unto edifying.