Although the Universal House of Justice is explicitly authorized to change or repeal its own legislation as conditions change, thus providing Bahá’í law with an essential element of flexibility, it cannot abrogate or change any of the laws which are explicitly laid down in the sacred Text.

The society for which certain of the laws of the Aqdas are designed will come only gradually into being, and Bahá’u’lláh has provided for the progressive application of Bahá’í law:

Indeed, the laws of God are like unto the ocean and the children of men as fish, did they but know it. However, in observing them one must exercise tact and wisdom... Since most people are feeble and far-removed from the purpose of God, therefore one must observe tact and prudence under all conditions, so that nothing might happen that could cause disturbance and dissension or raise clamour among the heedless. Verily, His bounty hath surpassed the whole universe and His bestowals encompassed all that dwell on earth. One must guide mankind to the ocean of true understanding in a spirit of love and tolerance. The Kitáb-i-Aqdas itself beareth eloquent testimony to the loving providence of God.

The principle governing this progressive application was enunciated in a letter written on behalf of Shoghi Effendi to a National Spiritual Assembly in 1935:

The laws revealed by Bahá’u’lláh in the Aqdas are, whenever practicable and not in direct conflict with the Civil Law of the land, absolutely binding on every believer or Bahá’í institution whether in the East or in the West. Certain ... laws should be regarded by all believers as universally and vitally applicable at the present time. Others have been formulated in anticipation of a state of society destined to emerge from the chaotic conditions that prevail today... What has not been formulated in the Aqdas, in addition to matters of detail and of secondary importance arising out of the application of the laws already formulated by Bahá’u’lláh, will have to be enacted by the Universal House of Justice. This body can supplement but never invalidate or modify in the least degree what has already been formulated by Bahá’u’lláh. Nor has the Guardian any right whatsoever to lessen the binding effect much less to [pg 7]abrogate the provisions of so fundamental and sacred a Book.

The number of laws binding on Bahá’ís is not increased by the publication of this translation. When it is deemed timely, the Bahá’í community will be advised which additional laws are binding upon believers, and any guidance or supplementary legislation necessary for their application will be provided.

In general, the laws of the Kitáb-i-Aqdas are stated succinctly. An example of this conciseness can be seen in the fact that many are expressed only as they apply to a man, but it is apparent from the Guardian’s writings that, where Bahá’u’lláh has given a law as between a man and a woman, it applies mutatis mutandis between a woman and a man unless the context makes this impossible. For example, the text of the Kitáb-i-Aqdas forbids a man to marry his father’s wife (i.e. his stepmother), and the Guardian has indicated that likewise a woman is forbidden to marry her stepfather. This understanding of the implications of the Law has far-reaching effects in light of the fundamental Bahá’í principle of the equality of the sexes, and should be borne in mind when the sacred Text is studied. That men and women differ from one another in certain characteristics and functions is an inescapable fact of nature and makes possible their complementary roles in certain areas of the life of society; but it is significant that ‘Abdu’l-Bahá has stated that in this Dispensation "Equality of men and women, except in some negligible instances, has been fully and categorically announced."

Mention has already been made of the intimate relationship between the Kitáb-i-Aqdas and the Holy Books of previous Dispensations. Especially close is the relationship to the Bayán, the Book of Laws revealed by the Báb. It is elucidated in the following excerpts from letters written on behalf of the Guardian:

Shoghi Effendi feels that the unity of the Bahá’í Revelation as one complete whole embracing the Faith of the Báb should be emphasized... The Faith of the Báb should not be divorced from that of Bahá’u’lláh. Though the teachings of the Bayán have been abrogated and superseded by the laws of the Aqdas, yet due to the fact that the Báb considered Himself as the Forerunner of Bahá’u’lláh, we would regard His Dispensation together with that of Bahá’u’lláh as forming one entity, the former being introductory to the advent of the latter.

The Báb states that His laws are provisional and depend upon the acceptance of the future Manifestation. This is why in the Book of Aqdas Bahá’u’lláh sanctions some of the laws found in the Bayán, modifies others and sets aside many.