In the Upper Room they all Spoke them at once with no interpreter.
And Paul is addressing the Corinthians who were pagans and did many things incorrect.
Right, but such a command has not been given yet.
This proves that not everything written in the New Testament remains exactly the same in all points in time.
Plus, Pentecost was a unique event that was actually spoken about ahead of time by John the Baptist, and Jesus. It was not meant to be a repeat event that would take place over and over and over again. Yes, Cornelius and his household experienced that event, but this is not normative for all believers.