The Dynamic Angelic Choir directed by Rev. Lawrence Roberts is a classic gospel favorite. According to the Black Gospel Music Blog, :

Rev. Roberts was a longtime producer for Savoy Records. It was his church choir — the Angelic Choir of the First Baptist Church of Nutley, NJ — that teamed with Rev. James Cleveland on the historic “Peace Be Still” recording session in September 1963. That album took Cleveland and the Angelic Choir to new levels of popularity in the gospel music industry and helped make Savoy the “go to” label for gospel choirs for the next three decades.

Rev. Roberts also recorded with his wife and with the Gospel Chordettes, which changed its name when the Archie Bleyer Chordettes (“Mr. Sandman”) took issue. Rev. Roberts said he changed the group’s name to the Lawrence Roberts Singers “because I know nobody had THAT name!”
Here is a recording from The Dynamic Angelic Choir.