Pray for us: for we trust (rather, we are persuaded, πειθόμεθα) that we have a good conscience, in all things willing (i.e. desiring) to live honestly. When St. Paul uses the plural ἡμεῖς he usually at least, if not always, includes his colleagues (cf.
1 Thessalonians 5:25; 2 Thessalonians 3:1; Colossians 4:3). So probably the writer here, especially as there is a transition to the singular in the following verse. Whoever he was, he associates himself in sending the Epistle with his fellow-laborers, i.
e. with others of what we may call the Pauline circle, who were engaged with him elsewhere. Both this and the request for prayer, and also the assertion of integrity, which seems to imply suspicion of possible mistrust, are quite in St.
Paul's way, and confirm the view that, though the author may not have been St. Paul himself, it was at any rate some one who was, or had been, closely connected with him.