“And he asked for a writing table, and wrote, saying, His name is John. And they marvelled all. 64And his mouth was opened immediately, and his tongue loosed, and he spake, and praised God. ” Luke 1:63-64
There really is not much difference between the man who can talk and the man who can’t talk, until their tongue is “loosed” by God. Speaking under the authority and power of the Holy Spirit is the only way talking will set people free.