the Reformation 500 years ago was about returning to what God says to us in his Word. So, we turn to Jesus in the familiar words of John’s gospel, the 8th chapter, verse 31. Jesus says, “If you hold to my teaching, you are really my disciples. Then you will know the truth, and the truth will set you free.”
On the Day of Pentecost, in Acts 2, when Peter and the apostles began speaking in tongues that day – it was clearly a known language to all the different ethnic groups that were up at Jerusalem that day. God was using all these extraordinary gifts of the Holy Spirit to help blend his Jewish/Gentile church into one body under Christ as its head.