"If we take stock of the foregoing texts, we observe a close connection between the "filling" of the Spirit and prophecy. John the Baptist was a prophet of the Lord and filled with the Spirit from his mother's womb ... Both Elizabeth and Zechariah were filled with the Spirit and prophesied ... the same pattern continues in Acts. When the 120 believers on the Day of Pentecost were filled with the Spirit, they spoke in tongues ... they proclaimed the "mighty acts of God" ... perhaps it is significant that the verb "fill" is not used on any other occasion when people speak in tongues in Acts. This is the only occasion in Acts in which those who speak in tongues are understood by the hearers so that God's word is proclaimed in a comprehensible manner".
Thomas R Schreiner - "New Testament Theology - Magnifying God in Christ" - Apollos, Nottingham (2008) - (p444).