These verses in EPHESIANS 5:20,21 introduce a new topic, one of How we relate to our fellow men/ women. That is, are focus now shifts from our VERTICAL relationship (Us & God) to 'Horizontal' relationships with other human beings

If we are in Proper relationship with ABBA (Vertically), that presupposes we will be in proper alignment in our relationships with people

This episode then, begins to speak of the concept of SUBMISSION or the Ability to Be subject to another person in a Relationship to make the best of that relationship

Because we are Saints of God we should be best at applying this principal, which requires sacrifice at times of our desire first & humility to put others needs above our own.