From the writings of Bahá'u'lláh...
God, the unknowable Essence, the divine Being, is immensely exalted beyond every human attribute, such
as corporeal existence, ascent and descent, egress and regress. Far be it from His glory that human
tongue should adequately recount His praise, or that human heart comprehend His fathomless mystery. . .
No tie of direct intercourse can possibly bind Him to His creatures. He standeth exalted beyond and
above all separation and union, all proximity and remoteness...
From time immemorial He hath been veiled in the ineffable sanctity of His exalted Self, and will everlastingly continue to be wrapped in the impenetrable mystery of His unknowable Essence. Every attempt to attain to an understanding of His inaccessible Reality hath ended in complete bewilderment, and every effort to approach His exalted Self and envisage His Essence hath resulted in hopelessness and failure.
Gracious God! How could there be conceived any existing relationship or possible connection between His Word and they that are created of it?. . . All the Prophets of God and their chosen Ones, all the divines, the sages, and the wise of every generation, unanimously recognize their inability to attain unto the comprehension of that Quintessence of all truth, and confess their incapacity to grasp Him, Who is the inmost Reality of all things.