BibTeX:
@incollection{Various,
  author = {Various},
  title = {‘Abdu’l-Bahá’s love of God and Bahá’u’lláh brought a calm and a serenity which},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/peacefulness},
}

APA:
Various. ‘Abdu’l-Bahá’s love of God and Bahá’u’lláh brought a calm and a serenity which. In *bahaistories.com archive*.

MLA:
Various. "‘Abdu’l-Bahá’s love of God and Bahá’u’lláh brought a calm and a serenity which." *bahaistories.com archive*, n.d..

Chicago:
Various. "‘Abdu’l-Bahá’s love of God and Bahá’u’lláh brought a calm and a serenity which." In *bahaistories.com archive*, n.d..