Nowhere did I say they can’t speak I other languages. What verse 4 makes absolutely clear—it couldn’t be made clearer—is that the Holy Spirit gave the disciples the ability to speak in languages they did not know:How do you know they can't speak any other languages?
Act 2:4 And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit gave them utterance. (ESV)
What happened first is that the disciples “were all filled with the Holy Spirit,” and then “began to speak in other tongues as the Spirit gave them utterance.” Notice that nowhere in the passage is it stated that the “Jews, devout men from every nation under heaven,” were filled with the Holy Spirit nor that each heard in their native language as an ability given by the Holy Spirit. The disciples were speaking in the native languages of the hearers—that is the whole point—and so obviously didn’t need the help of the Holy Spirit to understand.
What does this have to do with this discussion?The Lord instructed apostle John in Rev. 1:11 - "I am the Alpha and the Omega, the First and the Last,” and, “What you see, write in a book and send it to the seven churches which are in Asia." I don't think Revelation was originally written in Galilean, if that's a real language instead of an accent, or anybody of the seven churches spoke Galilean.