The meaning of the Word of God can never be exhausted

“Know assuredly that just as thou firmly believest that the Word of God, exalted be His glory, endureth for ever, thou must, likewise, believe with undoubting faith that its meaning can never be exhausted. They who are its appointed interpreters, they whose hearts are the repositories of its secrets, are, however, the only ones who can comprehend its manifold wisdom.”  (Baha'u’llah, Gleanings LXXXIX)