Very often in Paul. The singular only here and Tit 3:15.
Prisca and Aquila
They appear in Corinth, Act 18:2, Act 18:3; in Ephesus, Act 18:18, Act 18:26; 1Co 16:19.
Onesiphorus
Profit-bringer. Comp. 2Ti 1:16. One of the punning names so common among slaves. Comp. Chresimus, Chrestus, Onesimus, Symphorus, all of which signify useful or helpful.