But I will tarry in Ephesus until Pentecost.
The apostle Paul’s first letter to the Corinthians was written perhaps 25 years after the New Testament Church of God was founded on the Day of Pentecost in A.D. 31. His note to the Corinthians in this passage shows that Paul and the Church continued to celebrate Pentecost, also called “the Feast of Weeks, of the firstfruits of wheat harvest” (Exodus 34:22) and other names in the Old Testament.
The New Testament record shows that the New Testament Church continued to observe all seven of God’s festivals. For example, earlier in 1 Corinthians Paul also mentioned the Passover and the need to “keep the feast, not with old leaven,” referring to the Feast of Unleavened Bread (1 Corinthians 5:7-8).