Here is an alternate chapter-by-chapter rundown of Ephesians (not original with me, though I don’t know where I got it). This one focuses on the overall theme of the book, the church of Jesus Christ. Someone once wrote that Colossians could be summed up with “The Christ of the Church” as its theme, & Ephesians could be summed up with “The Church of the Christ” as its theme.
Ch. 1—The church: Christ’s body
Ch. 2—The church: The house/temple of God
Ch. 3—The church: Declaring the wisdom of God
Ch. 4—The church: Perfection & unification of the church
Ch. 5—The church: The spotless bride of Christ
Ch. 6—The church: The army of God