If you are referring to 1 Corinthians 14:28, which was after two or three speak in tongues while another interpret, this was to prevent a visiting foreigner speaking out of turn which was why he can be made to be silent.
Tongues are an interpretation as a revelation from God. It’s not man speaking in an unknown language unknown to his own self..
1Co 14:27 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. But if there be no interpreter, let him keep silence in the church; and let him speak to himself, and to God.
An example. Two or three is used as law to indicate that they are in agreement... all speak German . If God does not supernatural interpret it into a language know by the hearer they should keep their thoughts to his own self.
Notice it does not say if
one speaks in an unknown language. Two or three is the witness needed to believe it comes from God.
Deuteronomy 17:6 At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; but at the mouth of one witness he shall not be put to death.
Deuteronomy 19:15 One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sinneth: at the mouth of
two witnesses, or at the mouth of
three witnesses, shall t
he matter be established.
Matthew 18:16 But if he will not hear thee, then take with thee one or two more, that in the mouth of
two or three witnesses every word may be established.
Matthew 18:20 For where
two or three are gathered
together in my name, there
am I in the midst of them.
Tongues is sign to those who believe not because they cannot understand the natural language of the speaker (no interpretation by the Holy Spirit) .
Prophecy for those given the understanding of another language, as God supernaturally interprets into their language, is for those who are given the faith of Christ to believe God.
Seeking after signs as that seen rather than walking by faith (unseen)I believe only shows a person has no confidence that they have the Holy Spirit so they work to make sounds and then believe they have the Holy Spirit. (self-edification.)