There is a "mighty rushing wind" (wind is a common symbol for the Holy Spirit) and "tongues as of fire" appear. The gathered disciples were "filled with the Holy Spirit, and began to speak in other tongues as the Spirit gave them utterance". Some scholars have interpreted the passage as a reference to the multitude of languages spoken by the gathered disciples, while others have taken the reference to "tongues" () to signify ecstatic speech. In Christian tradition, this event represents fulfillment of the promise that Christ will baptize his followers with the Holy Spirit. (Out of the four New Testament gospels, the distinction between baptism by water and the baptism by Christ with "Holy Spirit and fire" is only found in Matthew and Luke.)