1 tn This is one of the clearest texts in the NT in which ὑπέρ is used for substitution. Cf. ExSyn 387.
2 tn Grk “in my imprisonment.” Paul seems to expect release from his imprisonment after some time (cf. v. 22), but in the meantime the assistance that Onesimus could provide would be valuable to the apostle.
3 tn Grk “in the chains of the gospel.” On the translation “imprisonment for the sake of the gospel,” cf. BDAG 219 s.v. δεσμός 1.a where it says: “Oft. simply in ref. to the locale where bonds or fetters are worn imprisonment, prison (Diod. S. 14, 103, 3; Lucian, Tox. 29; Jos., Ant. 13, 294; 302, Vi. 241; Just., A I, 67, 6 al.) Phil 1:7, 13f, 17; Col 4:18; Phlm 10. μέχρι δεσμῶν 2 Ti 2:9. ἐν τοῖς δ. τοῦ εὐαγγελίου in imprisonment for the gospel Phlm 13; cf. ISm 11:1; Pol 1:1.”