1 Corinthians 16:8 KJV

But I will tarry at Ephesus until Pentecost.
1 Corinthians 16:8, King James Version

In context

7 For I will not see you now by the way; but I trust to tarry a while with you, if the Lord permit.

8 But I will tarry at Ephesus until Pentecost.

9 For a great door and effectual is opened unto me, and there are many adversaries.