Credo provides a unique basis for personal daily meditations, while opening the way for the church to explain the basic significance of the creed it so often recites. Williams takes the classic Nicene Creed of the church and examines the meaning and modern application of each of its words and phrases. He shows the historical setting of the creedal statement, historical disputes that gave rise to the precise wording of the creed, and current situations that call for affirmation of the creed amid a multitude of ecclesiastical differences. Williams even provides a way to sing the creed.

'In Credo, Don Williams proclaims exactly what our world needs in this time of wobbling foundations: the reality of the truths of the Christian faith as they have been proclaimed for almost 1700 years. Don's discussion of 'one, holy, catholic and apostolic church' is especially important as he offers this 'unified core of the truth' as the proper basis for Christian unity.'
- Donna Fletcher Crow, author of Seasons of Prayer: Rediscovering Classic Prayers Through the Christian Calendar