An idea of outward conditions at the time of writing may be gained from the two Epistles of the group most universally admitted to be genuine, Philemon and Philippians. Both are written from captivity, almost certainly in Rome, because the writer is expecting, if released, to revisit the Ægean coasts, which was not Paul's expectation in Cæsarea. But there is a wide difference between the two as respects the circumstances presupposed. The tone of Philemon is hopeful, sprightly, even jocose. Paul is in company with a group of "fellow-workers" which significantly includes "Mark," as well as two companions of the voyage to Rome, "Aristarchus" of Thessalonica, and "Luke" (Acts xxvii. 2). Epaphras, his "fellow-prisoner," appears in Colossians as the founder of that church and a teacher in the adjacent towns of Hierapolis and Laodicea. He has brought to Paul either of his own knowledge or by report from others, disturbing news of the inroads of the heresy. Onesimus, whose case occasions the letter to Philemon, is an escaped slave of this friend and convert of Paul. The apostle is sending back the slave with the request that he be forgiven and manumitted. The interrelation of the persons mentioned in Philemon and Colossians shows that the occasion is the same. Tychicus (_cf._ Acts xx. 3) the bearer of Colossians (Col. iv. 7) accompanies Onesimus. Ephesians (if authentic) belongs to the same group, being also carried by Tychicus (Eph. vi. 21). It was certainly _not_ intended for Ephesus, but for some church or churches not directly known to Paul (i. 15; iii. 2). It bears much the same relation to Colossians as Romans to Galatians. In spite of copious evidences of its use reaching back even to Clement of Rome (95) the genuineness of Ephesians is more seriously questioned than that of any other Pauline letter save the Pastorals. In the present writer's judgment this suspicion is unfounded, but the question of Pauline, semi-Pauline or deutero-Pauline is immaterial to the general development.