The Kitáb-i-Aqdas
Notes
166.Ye have been enjoined to renew the furnishings of your homes after the passing of each nineteen years   ¶151
Bahá’u’lláh confirms the injunction in the Arabic Bayán regarding the renewal, every nineteen years, of the furnishings of one’s home, provided one is able to do so. ‘Abdu’l-Bahá relates this ordinance to the promotion of refinement and cleanliness. He explains that the purpose of the law is that one should change those furnishings that become old, lose their lustre and provoke repugnance. It does not apply to such things as rare or treasured articles, antiques or jewellery.