“Your God Is Too Small” is the title of a book written by English Bible scholar and Anglican clergyman J. B. Phillips. Published in 1961, it was quite popular among young Christians during my college years in the ‘60s and has never gone out of print. Today paperback and electronic editions are available from a number of sources.
Phillips acknowledged that, while modern science, technology, and social interconnections have expanded immensely, for many Christians, our conception of God has remained static for centuries. He challenged his readers to stretch their understanding beyond the formulas of ancient creeds and to recognize that God is expansive enough to encompass everything we encounter in contemporary life.