Deeper Bible Commentary 

You can find commentary on every chapter of the Bible in the New European Version  of the Bible here ; there is audio and video commentary available on many Bible chapters; books about many Bible themes; and verse by verse extensive commentary on every verse in the New Testament as follows:

Matthew | Mark | Luke | John | Acts | Romans | 1 Corinthians | 2 Corinthians | Galatians | Ephesians| Philippians | Colossians | 1 Thessalonians | 2 Thessalonians | 1 Timothy | 2 Timothy | Titus | Philemon | Hebrews | James | 1 Peter | 2 Peter| 1 John | 2 John | 3 John | Jude | Revelation