Gevurot 2:1-3

Orthodox Jewish Bible

2 And when the day of Shavuos is fulfilled, they were all together in one place. [Lv 23:15,16]

² And there was mitamuhl (suddenly) from Shomayim a sound like the rushing of a violent wind, and it filled the whole bais where they were sitting.

³ And leshonot appeared to them, being divided as eish resting on each one of them,