versicle

/ˈvɜrsɪkəl/
noun
  1. A short verse, especially one said or sung by a leader in a religious service and followed by a response from the congregation.
    • During the evening prayer, the versicle was followed by a communal response.
    • The versicle 'O Lord, open thou our lips' began the morning service.
    • The minister intoned a versicle, and the choir answered in harmony.