What if the greatest barrier to understanding Jesus Christ lies in how we interpret one verse of Scripture? In How the LORD is One: Defined by the Law and Revealed in Christ, Kristian Klepes presents a detailed biblical theology of the Shema, "The LORD our God, the LORD is one" (Deuteronomy 6:4). Many interpret this declaration as absolute singularity. Klepes argues instead that the Law itself defines the LORD's oneness as a compound unity revealed in the Exodus narrative and fulfilled in Christ. Drawing from the Law, the Prophets, and the New Testament, this Christian theology study examines how God, the Angel of the LORD, and the Spirit of the LORD act together in Israel's deliverance from Egypt. It traces how this Old Testament foundation aligns with Christ's revelation of the Father, Son, and Holy Spirit. Through careful scriptural analysis, the book engages Trinitarian doctrine, biblical interpretation, and apologetics in conversation with Jewish, Muslim, and non-Trinitarian readings. Written for pastors, seminary students, and serious Bible readers, this work equips you to understand and defend the unity of the LORD as revealed across Scripture. If you seek a deeper, text-driven exploration of the Trinity rooted in the Old Testament, this book invites you to examine the evidence and reconsider how the LORD is one.