Some Ans. Questions 1908 by -'Abdu'l-Bahá- 1 Para

To epitomize: essential infallibility belongs especially to the supreme Manifestations, and acquired infallibility is granted to every holy soul. For instance, the Universal House of Justice, ' if it be established under the necessary conditions-- with members elected from all the people-- that House of Justice will be under the protection and the unerring guidance of God. If that House of Justice shall decide unanimously, or by a majority, upon any question not mentioned in the Book, that decision and command will be guarded from mistake. Now the members of the House of Justice have not, individually, essential infallibility; but the body of the House of Justice is under the protection and unerring guidance of God: this is called conferred infallibility (172:2)

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