Acts 2:4
and they were all filled with the holy Spirit ??they began to speak in foreign tongues, as the Spirit enabled them to express themselves.
Acts 19:6
and after Paul laid his hands on them the holy Spirit came upon them, they spoke with 'tongues' and prophesied.
Mark 16:17
And for those who believe, these miracles will follow: they will cast out daemons in my name, they will talk in foreign tongues,
Acts 2:11
Cretans and Arabians, we hear these men talking of the triumphs of God in our own languages!"
1 Corinthians 14:20-25
Brothers, do not be children in the sphere of intelligence; in evil be mere infants, but be mature in your intelligence.