Great is Your Faithfulness is the reflection of a father and grandfather looking back on his life. It is easier looking back to recognise the gracious hand of God's providence than it is to discern the right path at the time.
The book seeks to motivate and encourage his grandchildren to aspire to what is best, beautiful and godly in life by providing a narrative of the family's recent history.
The author takes us from his family roots in a small mining village in South Wales to retirement in Edinburgh. He traces a journey, despite initial disappointments, to achieving a successful academic career, in a life that is shaped by a Christian world view.

David Rees is a father and grandfather, who is proud of his Welsh roots and appreciative of the influences that have shaped him to make him the person that he now is. He has spent over 50 years pursuing a career in Electrical and Electronic Engineering, initially in industry and laterally as a University lecturer and researcher. The dominant influence in his life has been a Christian worldview, which has shaped his priorities and activities, including a lifetime commitment to Church life and mission.