1 Corinthians 14:12-13, 26-28

So also you, since you are zealous of spiritual gifts, seek to abound for the edification of the church. Therefore let one who speaks in a tongue pray that he may interpret.

What is the outcome then, brethren? When you assemble, each one has a psalm, has a teaching, has a revelation, has a tongue, has an interpretation. Let all things be done for edification. If anyone speaks in a tongue, it should be by two or at the most three, and each in turn, and one must interpret; but if there is no interpreter, he must keep silent in the church; and let him speak to himself and to God.