John Wesley on Romans 1:13

Brethren - A frequent, holy, simple, sweet, and yet grand, appellation. The apostles but rarely address persons by their names; 'O ye Corinthians," "O Timotheus." St. Paul generally uses this appellation, " Brethren;" sometimes in exhortation, " My beloved," or, " My beloved brethren;" St. James, "Brethren," "My brethren," My beloved brethren;" St. Peter and Jude always, " Beloved;" St. John frequently, " Beloved;" once, " Brethren;" oftener than once, My little children." Though I have been hindered hitherto - Either by business, see Rom 15:22; or persecution, 1Thes 2:2; or the Spirit, Acts 16:7. That I might have some fruit - Of my ministerial labours. Even as I have already had from the many churches I have planted and watered among the other gentiles.