Day 20 hooks a lot of my issues from the very beginning. The title is "God Joins the Army." A significant part of my formation took place in one of the historic peace churches - The Church of the Brethren. I believe that a follower of Jesus should not ever engage in violence and must not serve in the military. When we lived in Pennsylvania, a hotbed of historic peace churches, there was a popular bumper sticker that said, "Loving One's Enemies Probably Begins with Not Killing Them." Makes sense to me.
From the title you can see this involves the military and indeed, a war with the central question being, "whose side is God on?" The answer in the parable is that when God is involved, the "oppressed always win."
I certainly believe that God always sides with the oppressed but to say they always win is naive at best... which raises questions regarding the weakness of God.