BKERKE, Lebanon — Classical music swelled as the bride stepped from a white sedan onto a red carpet, took the arm of her tuxedoed groom and walked down the aisle, both grinning as their relatives cheered nearby.

The next bride did the same. And the next. And the next. And the next.

Once the couples — 34 that day — reached their seats, the patriarch of the Maronite Church, dressed in crimson robes and gripping a scepter topped with a golden cross, led Mass and declared the whole lot husbands and wives.

It was Lebanon’s fourth mass wedding in three weeks, representing a social phenomenon that has been growing here and across the Middle East.