BibTeX:
@incollection{Various,
  author = {Various},
  title = {The Blast of the Trumpet – the amazing way in which a woman announced the birth of a new cycle for humanity},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2015/06/the-blast-of-trumpet-amazing-way-in.html},
}

APA:
Various. The Blast of the Trumpet – the amazing way in which a woman announced the birth of a new cycle for humanity. In *Baha'i Stories Blog*.

MLA:
Various. "The Blast of the Trumpet – the amazing way in which a woman announced the birth of a new cycle for humanity." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "The Blast of the Trumpet – the amazing way in which a woman announced the birth of a new cycle for humanity." In *Baha'i Stories Blog*, n.d..