Probably my favorite line from Atheism: The Case Against God By George Smith
"If we wish to discover the nature of the Christian God, the National Catholic Almanac offers us a generous assortment of attributes from which to choose. According to this source, God is "almighty, eternal, holy, immortal, immense, immutable, incomprehensible, ineffable, infinite, invisible, just, loving, merciful, most high, most wise, omnipotent, omniscient, omnipresent, patient, perfect, provident, supreme, true"
This is certainly an impressive list, but one problem immediately becomes apparent: included in this catalogue of characteristics is "incomprehensible" One must wonder how it is possible to declare God's incomprehesbilitly and simutaneously list twenty two additional attributes. If God cannot be comprehended, how can the Christian offer us a string of attributes whose function, presumably, is to enable us to understand the nature of God?
The answer lies in the fact that Christianity, like religious agnosticism and all other varieties of theism, maintains that the true nature of God-his essence-lies beyond the reach of man's reason. Whatever knowledge of God we may possess is necessarily deficient in some way."