Traditionally, it is believed to have been written by Apostle Paul while he was in prison in Rome (around AD 62), but more recently, it has been suggested that it was written between AD 80 and 100 by another writer using Paul's name and style.
[1][2] This chapter is a part of Paul's exhortation (Ephesians 4–6), with the particular section about the mutual interdependence of the Christians as the church (verses 1–16) and how they should live in the world (4:17–5:20).
Some early manuscripts containing the text of this chapter are: Paul exhorts the church about its "calling", to live the whole life as a response to God's summons, while maintaining the unity in the Spirit; this a common calling for every believer, regardless of rank or ability, focusing on one common Lord, Jesus.
[13]The "triadic" confession – one Spirit… one Lord… one God – in the verses 4–6 recalls the scope of the unity in the church.
[16] till we all come to the unity of the faith and of the knowledge of the Son of God, to a perfect man, to the measure of the stature of the fullness of Christ;[19]Stretching to 5:20, this part gives a general all-purpose set of instruction, with the classic "put off (vices) and put on (virtues)" in verses 22–32, using the familiar imagery of changing clothes for changing the character and lifestyle.