The issues raised seem to resolve themselves into two points: the first being whether or not the Universal House of Justice has the authority to make authoritative interpretations; the second is whether anyone has the right to challenge the authority or actions of the Universal House of Justice. When these issues are approached with an understanding of the unity underlying all the Teachings, clarification results. Should the seeker, however, be influenced by a spirit of mistrust and conflict, then unending problems appear. The above points have both been covered in three letters written by the Universal House of Justice on 9 March 1965, 27 May 1966 and 7 December 1969. Unfortunately it seems that many of the friends have not studied these letters deeply or understood their implications. Already in "The Dispensation of Bahá’u’lláh" Shoghi Effendi has shown, beyond any doubt, that the function of making authoritative interpretations of the Teachings is confined solely and exclusively to the Guardian. Neither the Universal House of Justice, nor any other institution, person or group of persons can assume that function. That the Universal House of Justice will never infringe on the functions reserved to the Guardian is shown, not only by its own words and actions, but by Shoghi Effendi's statement in that same document: "Neither can, nor will ever, infringe upon the sacred and prescribed domain of the other." It is guaranteed by the fact that the Universal House of Justice as well as the Guardian are both "under the care and protection of the Bahá Beauty, under the shelter and unerring guidance of His Holiness, the Exalted One". In its letter of 9 March 1965, the House of Justice has stated: "There is a profound difference between the interpretations of the Guardian and the elucidations of the House of Justice in exercise of its function to deliberate upon all problems which have caused difference, questions that are obscure, and matters that are not expressly recorded in the Book.'" The friends will come to understand what this difference is by observing how the House of Justice functions and by turning to it for explanations when necessary. As you recognize, the authority of the Universal House of Justice is unchallengeable. This is stated in numerous places in the Writings. In the same passage of the Will and Testament quoted above, ‘Abdu’l-Bahá goes on to say of the Guardian and the Universal House of Justice: "Whatsoever they decide is of God. Whoso obeyeth him not, neither obeyeth them, hath not obeyed God; whoso rebelleth against him and against them hath rebelled against God; whoso opposeth him hath opposed God; whoso contendeth with them hath contended with God; whoso disputeth with him hath disputed with God; whoso denieth him hath denied God; whoso disbelieveth in him hath disbelieved in God; whoso deviateth, separateth himself, and turneth aside from him hath in truth deviated, separated himself and turned aside from God." Furthermore, at the very end of the Will and Testament, in warning against the danger of Covenant-breaking, ‘Abdu’l-Bahá wrote: "Beware lest anyone falsely interpret these words, and like unto them that have broken the Covenant after the Day of Ascension (of Bahá’u’lláh) advance a pretext, raise the standard of revolt, wax stubborn, and open wide the door of false interpretation." In this context, He continues: "To none is given the right to put forth his own opinion or express his particular conviction. All must seek guidance and turn unto the Centre of the Cause and the House of Justice. And he that turneth unto whatsoever else is indeed in grievous error."
