1 Corinthians 16:19

The churches of Asia salute you. — This and the following verse are occupied with the salutations from the churches throughout Asia; from the church in the house of Aquila and Priscilla; and finally, from “all the brethren.” Aquila and Priscilla had been the Apostle’s friends at Corinth (Acts 18:1), and he now was with them at Ephesus. (See Romans 16:3; 2 Timothy 4:19.) Probably by “the church in their house” is meant a group of foreigners then resident in Ephesus, and accustomed to meet there for worship, as distinct from those who had been converted in Ephesus.