'Tongues' in the Bible

And there appeared unto them tongues parting asunder, like as of fire; and it sat upon each one of them.

And they were all filled with the Holy Spirit, and began to speak with other tongues, as the Spirit gave them utterance.

Cretans and Arabians, we hear them speaking in our tongues the mighty works of God.

For they heard them speak with tongues, and magnify God. Then answered Peter,

And when Paul had laid his hands upon them, the Holy Spirit came on them; and they spake with tongues, and prophesied.