Dr. Wellum is an excellent theologian. I have had the privilege of having him as a professor in several seminary classes, and the quality of his classes are reflected in his work of systematic theology. Wellum's work is God-centered, Christ-shaped, and church-focused. His book is robust, but without overwhelming readers. It's a work that is useful to both the seminary student and the layman. Christians of all stripes will be edified by this work. Wellum embraces the historical tradition of the church and Reformed theology without losing sight of biblical theology. He interweaves systematic/historical theology and biblical theology with skill. While I don't hold to Wellum's particular view of covenant theology (Wellum is a Progressive Covenantalist while I am a 1689 Federalist), he develops his position well. If I had a couple quibbles, it would be that he employs some pretty significant metaphysical assumptions without clarifying what those assumptions are. He follows Van Til and Frame quite heavily on epistemology (which would be revealed epistemology, which is more of an idealist metaphysic), but in other areas he appears to adopt a realist metaphysic. I think his work would've been helped by clarity on his metaphysical approach. I personally hold to a realist metaphysic and so I part company with Wellum at times, but setting that aside, I think some additional discussion of this point would help readers. The other is that I think his comparison of Progressive Covenantalism and 1689 Federalism could be developed more. The comparison is does is excellent and I think fairly represents both sides, but considering how similar the views are, I think some more comparison here might be helpful for readers to understand the nuances of the two views. But quibbles aside, Wellum's work is top-notch and should be a must-have addition to any seminary student's library.