SCITUATE, Mass.  There are sleeping bags in the sacristy at St. Frances Xavier Cabrini Church and reclining chairs in the vestibule, but no one here gets too relaxed. “Please be ever vigilant!” a sign by the door warns, and the parishioners who have occupied the church since it closed more than four years ago take it as seriously as a commandment.

St. Frances was among dozens of churches that the Roman Catholic Archdiocese of Boston decided to close and sell in 2004, not least because of financial turmoil made worse by the abuse scandal in the clergy. But while most churches closed without a fight, parishioners at St. Frances, a brick A-frame on a wooded hill, and at four other churches rebelled.

For 1,533 days, the group at St. Frances has taken turns guarding the building around the clock so that the archdiocese cannot lock them out and put it up for sale. They call it a vigil, but by now it is more of a lifestyle.

“It’s much more of a living 24-hours-a-day, seven-days-a-week faith,” said Margy O’Brien, 78, a parishioner since St. Frances opened in 1960. “My generation of Catholics have paid, prayed and obeyed, but you get to a point where you’ve had it.”