preaching band

noun3

1. •
   [in the plural] Two bands (strips of linen) worn as formal neckwear by members of the Christian clergy.

   • When leading worship, Elsie usually wore a long black cassock and preaching bands. This would, of course, save her from the worry of choosing a suitable costume. — 2014
2. •
   A group of missionaries.

   • Perhaps we should form our own preaching band, to avoid compromise with the Christian ethic of brotherhood. — 2019
3. •
   (rare) A Christian band.