The first three chapters of this letter are largely personal and historical in character, the last two practical and doctrinal. They are joined in the Greek by the conjunction oun, which sometimes expresses a logical connection, as in Romans 12:1 where the exhortation arises out of the doctrinal exposition (cf. also Eph. 4:1; Col. 3:5). But not here. The oun is simply transitional. In his report, Timothy may have noted a tendency, or at least a temptation, for the Thessalonians to slip back into heathen conduct. There is always the pressure to conform—the downward pull of society. Paul exhorts them, therefore, to holiness (vv. 1–8; cf. 5:22f.), and to love (vv. 9f.), taking up the themes of the prayer of 3:11–13. He also pleads that they live quiet and industrious lives (vv. 11f.). Bruce …