This is actually The Caravans with Inez Andrews on lead but Inez takes this songs and makes them nothing but back up singers (Sorry Albertina). This was in a time where singers were not merely showing their voice but they were telling a story and Inez tells the story. Whoever is in the background moaning is trying to bring the Angels down.
1958 and it doesn't sound dated one bit because it is true gospel. Gospel music unlike other genres rarely sounds dated unless they were conforming to the popular sound of the day. Actually most excellent written songs never sound dated. It sounds as good today if not better and the meaning is still intact.