George L. Parsenios 
First, Second, and Third John (Paideia: Commentaries on the New Testament) [EPUB ebook] 

In this addition to the well-received Paideia series, a respected New Testament scholar examines cultural context and theological meaning in First, Second, and Third John. Paideia commentaries explore how New Testament texts form Christian readers by attending to the ancient narrative and rhetorical strategies the text employs, showing how the text shapes theological convictions and moral habits, and making judicious use of maps, photos, and sidebars in a reader-friendly format.