Speiser’s commentary on Genesis is very focused on the sources behind the text. This kind of criticism was very much in vogue at the time this volume was written. Fortunately the last 20 years have seen a rise in less skeptical and less speculative approaches. Some of Speiser’s comments on the text are helpful, many are not. There is some value in this work, but there are now many other commentaries on Genesis that are better (Wenham, Waltke, Hamilton, Kidner, Hartley, Matthews, and others).