Paul’s letter to the Ephesians is different compared to many of the other New Testament letters he wrote. Like Romans, Ephesians was not written so much to address problems in a particular church; more so, it was written to explain some of the great themes and doctrines of Christianity.
If the Letter to the Romans focuses more on God’s work in the individual Christian, Ephesians includes the great themes of God’s work in the church, the community of believers.
Karl Marx wrote about a new man and a new society, but he saw man and society both in almost purely economic terms and offered only economic answers. In his letter to the Ephesians, Paul also saw the new man and a new society, but he saw it all accomplished by the work of Jesus.