Greet Priscilla and Aquila my helpers in Christ Jesus:
Read Chapter 16
Ambrosiaster
AD 400
These were Jews who, after they believed, became coworkers with the apostle because they had believed correctly and were thus able to persuade others to accept the right faith. Apollos, for example, although he was learned in the Scriptures, was nevertheless taught the way of the Lord more correctly by them. This is why Paul calls them his fellow workers “in Christ Jesus.” Commentary on Paul’s Epistles.
Luke also bears witness to them when he says that Paul dwelt with them and that Priscilla [Prisca] had received Apollos and instructed him in the way of the Lord.