After describing how Christ transforms relationships within the Christian community, the Christian household is now addressed. Instructions are give to all the members of the New Testament household: wives, husbands, children, parents, slaves, and masters. Each is given a high standard of treatment toward their counterpart. However, the overall emphasis is the presence of Christ in the center each pair of relationships. In fact, each relationship within the household models some aspect of relationship with Christ and helps that member know Christ in a deeper way.
As we continue the series in Colossians, we see the practical application of what it means to worship the cosmic and yet personal Christ that was introduced in the first section. This section takes the mystery of who Christ is and applies it to the lives of a community of faith. Instead of pursuing some other kind of mystery, they are called to dive into the mystery of Christ and watch how it transforms every aspect of their lives. There are particular applications to community life, legalism, character, family, professional life, religious expression, and more. This is the beauty of life with Christ: we worship a cosmic Christ who is far outside the realm of our normal lives and yet that very worship completely transforms the day to day life that we live in this world.