"When the day of Pentecost had come they were all together in one place. And suddenly a sound came from heaven like the rush of a mighty wind, and it filled all the house where they were sitting. And there appeared to them tongues as of fire, distributed as resting upon each one of them. And they were all filled with the Holy Spirit...(Acts 2.1-4)
Apolytikion in the Plagal of the Fourth Tone
Blessed art Thou, O Christ our God, Who hast shown forth the fishermen as supremely wise by sending down upon them the Holy Spirit, and through them didst draw the world into Thy net. O Befriender of man, glory be to Thee.
Kontakion in the Plagal of the Fourth Tone
Once, when He descended and confounded the tongues, the Most High divided the nations; and when He divided the tongues of fire, He called all men into unity; and with one accord we glorify the All-holy Spirit.