Book excerpt: Trinity and Creation explores Scripture and the Reformed confession on the doctrine of creation as they relate to the triune God. When considering an act of God, it is important to understand the agent of the act in order to account properly for the act of the agent. Any faithful account of divine creation must ground its argument first in the God who creates. This method of treating the doctrine of creation is displayed in this book. It will become clear to readers that understanding the nature of God is essential in order to account for what God does. It will also become clear that this is not a novel method of accounting for creation. This book argues that not prioritizing theology proper in our accounting for creation is a recipe for theological novelty and, if unchecked, heresy. Trinity and Creation is offered to account for creatures given who God is, to display that its argument is firmly rooted in the Christian theological tradition, to address the views of some who (it will be argued) apply a faulty method when accounting for creatures, and to enhance readers’ knowledge and worship of our triune God—Father, Son, and Holy Spirit.