In my last post, I only briefly mentioned the broader point and purpose of the Bloodlines, the book from which our summary came. John Piper’s ministry, Desiring God, has made the entire book available – for free! – as a PDF here. In addition, Crossway, the book’s publisher, produced the following video to give a sense of the book’s direction and substance. I highly recommend reading the book and watching the video (though be aware, the clip is about twenty minutes long).