The song presumably would refer to the planets.

Beardedbruce posted the best composite of verses to Bright Morning Star's Arising in the thread Lyr. Req: Bright Morning Stars/Bright Morning S, 09 Apr. 08, 12:24 PM.

The song is traditional, no composer is listed with any of the versions. A possible Shaker origin is mentioned by a contributor, but no firm reference has been posted. A gospel origin seems more likely.