Is the Miracle That They Can Hear or Is It Both?

In Acts 1 verse 8, Jesus tells his followers that the Holy Spirit will be poured out on them. The first second it happens, languages are being jumped across and Babel is reversed. It seems to be indicating that this now move of God is intended to go to every tribe, tongue and nation. "It's a symbol, it's a picture of how this gospel will spread across the earth," he says.