Madeleine L'Engle (1918–2007) American writer
The Crosswicks Journal, The Irrational Season (1977)
Context: We rebel against the impossible. I sense a wish in some professional religion-mongers to make God possible, to make him comprehensible to the naked intellect, domesticate him so that he's easy to believe in. Every century the Church makes a fresh attempt to make Christianity acceptable. But an acceptable Christianity is not Christian; a comprehensible God is no more than an idol.