holy order

So the back‑pass rule became a holy order to hoof, a proclamation from above that this was now at least half the goalkeeper's job.

From The Guardian ● Jan. 22, 2011

She was the 17-year-old daughter of a nobleman of Assisi; she founded a holy order for women, was canonized after her death like Francis, whom she had loved all her life.

From Time Magazine Archive

Thus it will result in a very fine building indeed, and just as the affairs of that so distinguished and holy order are wont to result.

From The Philippine Islands, 1493-1898 — Volume 23 of 55 1629-30 Explorations by early navigators, descriptions of the islands and their peoples, their history and records of the catholic missions, as related in contemporaneous books and manuscripts, showing the political, economic, commercial and religious conditions of those islands from their earliest relations with European nations to the close of the nineteenth century. by James Alexander Robertson

Yet as brothers of one holy order thou mayest confide in me, if perchance it may bring thee comfort.

From A Golden Book of Venice by Mrs. Lawrence Turnbull

He was originally designed for the priesthood, but fortunately for that holy order his inclinations led him in another direction, and he became an Indian trader.

From The History of Minnesota and Tales of the Frontier by Charles E. (Charles Eugene) Flandrau