Commentaries

The Epistles of John (Anchor) By Raymond Brown
Letters of John (NIV Application) By Gary Burge
Epistles of John (NICNT) By I. Howard Marshall
Letters and Homilies for Hellenized Christians, Vol 1 (Titus, 1-2 Timothy, 1-3 John) By Ben Witherington
Early Christian Letters for Everyone By Tom Wright

General