Paidion, what a coincidence! I grew up in Calvary Temple and recall a similar rebuke, but not the later vindication. I wonder if I knew your sister! In any cases, much of what I have and will report in this thread either happened in that church or in programs sponsored by it.
Even one of my reported humorous church incidents happened there!
(1) Modern speaking in tongues can at times express modern languages. At age 19, a street witnessing organization called “Youth with a Mission” [YWAM] came to Calvary Temple and I joined them in their bus journey through Toronto and Montreal. YWAM’s founder, Loren Cunningham, drove the bus and he shared this testimony with me. He and his group were traveling through the Amazon with a translator, who did not understand the language of a tribe they encountered. At one point, Loren was approached by a woman with severe cataracts and he was given a message in tongues in her language and she was instantly healed! Loren said that this miracle opened an evangelistic door there, but I don’t recall the details of how this developed.
(2) At Calvary Temple, I learned about a similar example of xenoglossy in a sister church in Saskatchewan. A family received a message in tongues in Swahili, the language of the remote tribe where their daughter had been very sick, but could not be contacted. An African present in the meeting confirmed that the message in tongues was in Swahili. It confirmed that the daughter was OK and would return home soon.
(3) In his book “Jesus in Beijing,” NYT reporter David Aikman reports a message in tongues in Hebrew in a Pentecostal church in Amonte, CA. The preacher’s wife who gave the message didn’t know Hebrew, but the message was understood by a visiting American Jew. It called Dennis Balcombe to be a missionary to China. After a military stint in Vietnam, Dennis learned Cantonese and got involved in Bible smuggling into China. Eventually, he agreed to secretly visit house churches there, at time being carried in a coffin and at other times disguised in woman’s clothes. The result? 80 million illegal Chinese charismatic house church Christians in one of the greatest revivals of all time. Sometimes, the Holy Spirit just fell on the Chinese without prayer or the laying on of hands and they just burst into tongues! Such examples could be multiplied.
But as I said, I’d estimate that only 10% of tongues manifestations are authentic, and so, this manifestation has not fared well in scientific linguistic research into this phenomenon. Most of the time, Pentecostal churches lack the linguistic diversity to determine whether human languages are being uttered. But that is not the decisive factor that determines whether speaking in tongues is authentic. It can be gibberish from our perspective or, as Paul believes, angelic speech.