I will tarry at Ephesus until Pentecost. Viz, because at Ephesus was the famous temple of Diana, and because the chief men of Asia Minor lived there. Hence the Proconsul of Asia Minor resided at Ephesus, and, as Philostratus says (Vita Apollonii, lib. viii.), learning flourished there most; and, therefore, there was a greater harvest for S. Paul, and this was what determined him to stay so long there.
As we should expect, he tells them all exactly, informing them as friends. For this too is a mark of friendship to say the reason why he was not with them, why he delayed, and where he was staying.
They were keeping it "unleavened "ceremonially, and he urges a spiritual unleavening as more important. The Christian hallowing of Pentecost connects with the Paschal argument.
