Martin Luther wrote: "Faith takes hold of Christ and has Him present, enclosing Him as a ring encloses a gem." We hold faith as we seek to know Christ better, exploring Christian doctrines and deepening our understanding of their relevance to our day-to-day lives. Faith holds us as we respond to Christ's calling, negotiate life's challenges, and join in the work of bringing in God's kingdom. This introduction to Christian theology shows how various...