Last week, in light of the biblical phrase 'The Lord of Host' or the 'The Lord of War', I recommended to my Bethlehem Institute students a book by Tremper Longman III entitled, God is a Warrior.

Here is an article by Longman summerizing the argument of his book.

http://www.beginningwithmoses.org/articles/divinewarrior.htm 

This book is a good antidote to Greg Boyd's warfare theology.