It hath been enjoined upon you to pare your nails, to bathe yourselves each week in water that covereth your bodies, and to clean yourselves with whatsoever ye have formerly employed. Take heed lest through negligence ye fail to observe that which hath been prescribed unto you by Him Who is the Incomparable, the Gracious. Immerse yourselves in clean water; it is not permissible to bathe yourselves in water that hath already been used. See that ye approach not the public pools of Persian baths; whoso maketh his way toward such baths will smell their fetid odour ere he entereth therein. Shun them, O people, and be not of those who ignominiously accept such vileness. In truth, they are as sinks of foulness and contamination, if ye be of them that apprehend. Avoid ye likewise the malodorous pools in the courtyards of Persian homes, and be ye of the pure and sanctified. Truly, We desire to behold you as manifestations of paradise on earth, that there may be diffused from you such fragrance as shall rejoice the hearts of the favoured of God. If the bather, instead of entering the water, wash himself by pouring it upon his body, it shall be better for him and shall absolve him of the need for bodily immersion. The Lord, verily, hath willed, as a bounty from His presence, to make life easier for you that ye may be of those who are truly thankful.

To none is it permitted to mutter sacred verses before the public gaze as he walketh in the street or marketplace; nay rather, if he wish to magnify the Lord, it behoveth him to do so in such places as have been erected for this purpose, or in his own home. This is more in keeping with sincerity and godliness. Thus hath the sun of Our commandment shone forth above the horizon of Our utterance. Blessed, then, be those who do Our bidding.

To none is it permitted to seek absolution from another soul
Bahá’u’lláh prohibits confession to, and seeking absolution of one’s sins from, a human being. Instead one should beg forgiveness from God. In the Tablet of Bishárát, He states that “such confession before people results in one’s humiliation and abasement”, and He affirms that God “wisheth not the humiliation of His servants”.
Shoghi Effendi sets the prohibition into context. His secretary has written on his behalf that we

. . . are forbidden to confess to any person, as do the Catholics to their priests, our sins and shortcomings, or to do so in public, as some religious sects do. However, if we spontaneously desire to acknowledge we have been wrong in something, or that we have some fault of character, and ask another person’s forgiveness or pardon, we are quite free to do so.

The Universal House of Justice has also clarified that Bahá’u’lláh’s prohibition concerning the confession of sins does not prevent an individual from admitting transgressions in the course of consultations held under the aegis of Bahá’í­ institutions. Likewise, it does not preclude the possibility of seeking advice from a close friend or of a professional counsellor regarding such matters.

approach not the public pools of Persian baths
Bahá’u’lláh prohibits the use of the pools found in the traditional public bath-houses of Persia. In these baths it was the custom for many people to wash themselves in the same pool and for the water to be changed at infrequent intervals. Consequently, the water was discoloured, befouled and unhygienic, and had a highly offensive stench.

To none is it permitted to mutter sacred verses before the public gaze as he walketh in the street or marketplace
This is an allusion to the practice of certain clerics and religious leaders of earlier Dispensations who, out of hypocrisy and affectation, and in order to win the praise of their followers, would ostentatiously mutter prayers in public places as a demonstration of their piety. Bahá’u’lláh forbids such behaviour and stresses the importance of humility and genuine devotion to God.