I'm hoping to some more content on violence in the Old Testament as well as a much more detailed and thoughtful response to Greg Boyd's "Cruciform Hermeneutic" in the future. Until then, here is a video getting started on those topics and hopefully offering some help on topics like "How could God kill people?", "What about the Amalekites?", "How literal are the 'destroy them all' passages?", "Is it reasonable to just say that those passages don't really reflect God's commands?"
Here's a link to Paul Copan's book "Is God a Moral Monster?" https://www.amazon.com/dp/B004EPYPY4/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1