The text is dealing with the so called household (status) codes (Haustafeln) especially in the Letters to Colossians and Ephesians. Both texts are parts of a more voluminous parenesis for the community of t he church; they are based on a scheme typical for that period of relations between man and woman, parents and children, and lords and slaves in a household.
The Christian interpretation of that scheme in these letters brings a significant innovation, because it is based on a new understanding of man (human being) as renovated in Christ.