religious convention

Then there are his gnomic utterances and the annual religious convention, the Macworld Expo in San Francisco, where Jobs regularly turns up to lay hands on his devotees.

From The Guardian ● Jan. 25, 2011

Ordinarily as liberal as any U. S. churchmen, the Unitarians voted down the resolution after many a delegate had argued that Labor was not a proper concern of a religious convention.

From Time Magazine Archive

Fair visions of a life untrammeled by creed or religious convention hovered at times that night before his mental gaze.

From Carmen Ariza by Charles Francis Stocking

There we had a religious convention and an elopement last week.

From The Voice of the People by Ellen Anderson Gholson Glasgow

The task was one in which he was much hampered by a stringent religious convention, and the result is interesting, but not very happy.

From Latin Literature by J. W. (John William) Mackail