The Bible is unambiguous: there is only one God, the uncreated Creator of all things. Yet as Scripture progressively unfolds His self-revelation — through the Angel of the Lord, the Word, and the Spirit of God — a breathtaking picture emerges: this one God eternally exists as three distinct persons, Father, Son, and Holy Spirit. In this sermon Leon Pretorius walks through the Old and New Testaments to show that the doctrine of the Trinity is not a human invention but the faithful summary of what God has revealed about Himself.