The Trinity is an important doctrine, yet many Christians perceive it as difficult to understand and irrelevant to their Christian lives. Author Ryan McGraw explains that the Trinity is the foundation of the gospel, which we must come to understand as the work of all three divine persons - Father, Son, and Spirit. He shows us, in practical application, the ways that we grow in grace and piety as we learn to apply the truths of the Trinity to our daily walk with God.