One of the areas of sustained interest for Reverend Professor Anthony Kelly CSs R has been the mystery of the Trinity, the divine mystery constituted as Father, Son and Spirit. Indeed, his whole life as theologian, teacher, priest and preacher, and even as poet, has been spent in the quest firstly to know the mystery in which we live and move and have our being and to penetrate it ever more deeply, and secondly to communicate it ever The essays in this collection demonstrate the wide range of genre in which Kelly writesfrom the highly academic and scholarly, addressing the subtle refinements and sophisticated argumentation of theological scholarship (such as the essay on Trinitarian Connections in this collection), through more contemplative and meditative reflections, to the very practical (as in the challenges of preaching on Trinity Sunday). As is very evident in these essays, Kelly systematically, but gently, expatiates on the meaning of the mysteries of faith, skilfully interweaving references from the biblical witness, classic creedal statements of faith, doctrinal statements, and insights from the tradition, including the mystics. They show him to be a consummate systematician, robustly orthodox, but restlessly imaginative, ever bent on expressing the mysteries of Christian faith evocatively, meaningfully and persuasively. In a telling comment, Kelly writes: If faith is to remain alive to the living God, if it is to serve the Word, and communicate in the Spirit, our language needs to be restlessly imaginative.