For centuries, Christians have struggled to understand the nature of God as three persons in one. But with grace similar to that which allowed St. Patrick to explain the Trinity by using a shamrock, Joseph F. Girzone offers a simple, useful understanding. He begins by showing the ways God was perceived by the ancient Hebrews, and reveals how Jesus forever changed the image of God. As he chronicles the growth of Christianity from the time of Jesus and the early Church, writing about the challenges Christianity faced from both within and without, Girzone elucidates the mysterious ways the Trinity works in the world, especially in the Church, as an extension of Jesus' presence in history. Writing with passion and insight, he helps readers understand how the Father, the Son, and the Holy Spirit work within individuals as well, guiding them as they struggle along the pathways of life on earth.