Acts 20:16
16 For Paul had decided to sail past Ephesus, so that he might not have to spend time in Asia, for he was hastening gto be at Jerusalem, if possible, hon the day of Pentecost.
1 Corinthians 16:8
8 But I will stay in Ephesus until pPentecost,
Leviticus 23:15
The Feast of Weeks
15 d“You shall count seven full weeks from the day after the Sabbath, from the day that you brought the sheaf of the ywave offering.