When Paul left Corinth, Aquila and Priscilla traveled with him as far as Ephesus <1 Cor. 16:19>, where they met Apollos and instructed him more thoroughly in the Christian faith . Apparently, they returned to Rome, because Paul sent them greetings in his letter to the Romans .

(from Nelson's Illustrated Bible Dictionary)

(Copyright (C) 1986, Thomas Nelson Publishers)