Paul said that to the people DURING THE LAYING OF THE FOUNDATION.
No one is speaking in tongues anymore as they did during the laying of the foundation.
You gibberish is gibberish.
Not so Paul said "I have laid the foundation which foundation is Christ" that work was complete.
He established the body of Christ at Corinth, the assembly.
Now there are diversities of gifts but the same Spirit
and there are differences of administrations but the same Lord
and there are diversities of operations but it is the same God which worketh all in all.
But the manifestation of the Spirit is given to every man to profit withal
For to one is given by the Spirit the word of wisdom to another the word of knowledge by the same Spirit, to another faith by the same Spirit to another the gifts of healing by the same Spirit.
To another the working of miracles to another prophecy to another discerning of spirits, to another divers kinds of tongues to another the gift of interpretation of tongues.
But all these worketh that one same Spirit dividing to every man severally as He will.
For as the body is one and hath many members and all the members of that one body being many are one body so is Christ.
For by the Spirit we are baptized into one body....we have all been made to drink into one Spirit.
You have to ask yourself whether or no you fit into this body of Christ which Paul speaks about.