A.T. Robertson Commentary Acts 21:6

"and we went on board the ship, but they returned home again." — Acts 21:6 (ASV)

Beach (αιγιαλον). As in Mt 13:2 which see. This scene is in public as at Miletus, but they did not care.

Bade each other farewell (απεσπασαμεθα αλληλους). First aorist middle of απασπαζομα. Rare compound, here alone in the N.T. Tender scene, but "no bonds of long comradeship, none of the clinging love" (Furneaux) seen at Miletus (Acts 20:37f.).

Home again (εις τα ιδια). To their own places as of the Beloved Disciple in Joh 19:27 and of Jesus in Joh 1:11. This idiom in the papyri also.