1 Corinthians 14:14

If then I don’t know the meaning of the language, I would be to him who speaks a foreigner, and he who speaks would be a foreigner to me.

So also you, since you are zealous for spiritual gifts, seek that you may abound to the building up of the assembly.

Therefore let him who speaks in another language pray that he may interpret.

What should I do? I will pray with the spirit, and I will pray with the understanding also. I will sing with the spirit, and I will sing with the understanding also.

Otherwise, if you bless with the spirit, how will he who fills the place of the unlearned say the “Amen” at your giving of thanks, seeing he doesn’t know what you say?

For you most certainly give thanks well, but the other person is not built up.