1. Pseudo-Phocylides, Sententiae, tr. P.W. Van Der Horst, in: The Old Testament Pseudepigrapha, v. 2, ed. J.H. Charlesworth, New York 1985.
2. Bauer W., A Greek-English Lexicon of the New Testament and other Early Christian Literature, tr. W.F. Arndt – F.W. Gingrinch, Chicago 1979.
3. Betz H.D., Galatians: A Commentary, Minneapolis 1979.
4. Betz H.D., Stigma, in: Theological Dictionary of the New Testament, v. 7, ed. G. Kittel – G. Friedrich – G.W. Bromiley, Grand Rapids 1964, p. 657-664.
5. Bradley K., Slavery and Society at Rome, Cambridge 1994.