This book explains key doctrines in theology from the perspective of biblical eschatology. Eschatology first appears in Genesis rather than in Revelation, for it is about the chief end of man and God's creation. It is placed in the beginning rather than at the end of theology as the central and foundational motif. "The chief end of man" in the Westminster Shorter Catechism, for instance, is an eschatological concept in nature as well as in redemption. Eschatology precedes redemption, but "the eschatology of nature" is fulfilled through "the eschatology of redemption" in Jesus Christ. The "Golden Chain" of Ordo Salutis and the progress of redemptive history will be interpreted from the perspectives of covenant, eschatology, and Christology.