)[citation needed] Congregation Shomrei Emunah was established in 1907[1] by a group that included a number of Torah scholars;[2] publishing its by-laws on September 3, of that year.

[4] The subsequent founding of Beth El, Congregation Anshei Sfard, and Bnai Yehuda drew membership from Shomrei Emunah, which has been called "The Mother of Jewish Institutions" in Borough Park.

[2] Congregation members also played a role in the establishment of the first day school in the neighborhood, the Yeshivas Etz Chaim, and the Israel Zion Hospital, now known as the Maimonides Medical Center.

[2] In the early years of the congregation, the Chofetz Chaim had advised Torah scholars traveling to America that they should turn to Shomrei Emunah upon their arrival.

[2] In response to news of the Kristallnacht pogrom in November 1938, Shomrei Emunah held a public gathering "where FDR was praised for his stance on behalf of Jews".