A 30th anniversary edition of a classic book on the Trinity by one of Britain's most prominent theologians. Donald Macleod argues that our understanding of the Trinity matters because it is the model for the way we should live, particularly in our relations with one another. The relationship between Father, Son and Spirit is laid out in Scripture, and although fully grasping the concept of this divine mystery will always be beyond us, we can understand it better. It is critically important that we do, for if our understanding of God is wrong, it may lead to other wrong beliefs. Donald Macleod's faithful insight into what Scripture has to say about the Godhead is priceless, as relevant now as when it was first published. This 30th anniversary edition has been newly typeset and has a new cover, and will be an invaluable resource to a new generation of readers.