Laughter is important because we cannot really love anybody with whom we never laugh, and this is true of our relationship with God. Having a sense of humor is essential for maturity in faith and holiness. Unfortunately, humor and the role that laughter plays in life and spirituality have often been neglected and the aim of Laughter and the Grace of God is to restore laughter to its central place in Christian spirituality and theology. It examines the role of laughter in Scripture and finds it in unexpected places including the story of Abraham and the formation of the covenant and the tragedy of Job. There is laughter in the incarnation, the resurrection, and even the crucifixion. Jesus is the great Laugh-maker. Thomas Aquinas spoke of the sin of having too little laughter as well as the danger of having too much, while Martin Luther said, "If you're not allowed to laugh in heaven, I don't want to go there." Laughter is nothing less than a participation in the life and love of God.

'Public theology' involves the application of biblical and theological principles outside the confines of the church and assesses their implications for wider society. It examines both the theoretical structures of society (the nature of secularity, government, globalisation, pluralism and so forth) and the myriad specific issues involved in daily life (everything from sport to work-place relations to economics). Public theology is also, very importantly, a discipline that is practiced by the 'ordinary' Christian as well as the academic, and it is done in public (with all the scrutiny that entails) and in such a way that it communicates to non-Christians (although it remains a theological endeavour). In a real sense it is theology for the world, from the Word, by the people of God. The volume has a variety of contributors and includes an article on the role of public theology in Islam.

The belief that God is a Trinity - one God in three persons, Father, Son and Holy Spirit - is fundamental to Christianity, central to the whole understanding of the divine nature and the story of human salvation. Although the term 'Trinity' does not appear in the Bible, it expresses thoroughly biblical teaching. It was developed by the early Christians as the only way to account for the revelation of God in Jesus Christ through the power of the Holy Spirit. Brian Edgar's conviction is that the Trinity is fundamentally simple, thoroughly practical and theologically central - not abstract, obscure or irrelevant. With warmth and clarity, he expounds a range of biblical texts to show that God can indeed be known, and experienced in Christian life and ministry, in his glorious three-in-oneness.