Verses with the word pentecost in the New Testament (3 verses):
And when the day of Pentecost was fully come, they were all with one accord in one place.
For Paul had determined to sail by Ephesus, because he would not spend the time in Asia: for he hasted, if it were possible for him, to be at Jerusalem the day of Pentecost.
1 Corinthians 16:8
But I will tarry at Ephesus until Pentecost.