I've been thinking about this ever since you posted it.  Discovering the beauty and outright surprising treasure of the message of the  love of God that weaves its way all the way through the Old Testament is the gift of thoughtful study of this part of the Bible.  When we get hung up on trying to figure out the many passages that could be interpreted as angry-God stuff, we need to remind ourselves that the people who began to have a relationship with our one true God (when they listened) were people steeped in the pagan understandings of all the generations before them.  How could God teach them a new way and a new picture of God?  It was a very long, painful process for both God and human beings.  But some of the Hebrew people began to get it, and became the mouthpiece for God.  And in those moments when they were truly tuned in they wrote the golden words that ring true down through time, helping us to comprehend the vastness and unchanging purity and pathos of our loving, ever-pursuing God, who identified himself as "I AM."