tarried. stayed on. Greek. prosmeno. See note on Acts 11:23.
a good while. many days.
took his leave. having taken leave. Greek. apotasso, to set apart. Mid. withdraw. In N.T. always in Mid. Voice. Here, Acts 18:21.Mark 6:46; Luke 9:61; Luke 14:33; 2 Corinthians 2:13.
and sailed. sailed away. See note on Acts 15:39.
shorn. Greek. keiro. Occurs elsewhere, Acts 8:32, and 1 Corinthians 11:6. In the latter passage keiro, which means to "shear", and xurao, which means to "shave", both occur. Compare Acts 21:24.
Cenchrea. This was the port east of Corinth whence he would set sail.
vow. Greek. euche. App-134. Only here, Acts 21:23, and James 5:15. It has been questioned whether these words refer to Paul or to Aquila. The facts point to Paul, for whichever it was, the ceremonies connected with the vow could only be completed at Jerusalem, and while Paul was hastening his journey thither (Acts 18:21), Aquila appears to have remained at Ephesus (Acts 18:26).