In the not so distant Baptist past, all Sunday services ended with altar calls in which people came forward to make public professions of Christian faith or to become part of a local congregation.

But it was also common, during the "invitation hymn," for church members to come forward and huddle with the minister for a few quiet, discreet minutes. The pastor would announce that they had come forward to "rededicate their life to Christ" and then ask those assembled to offer them hugs and prayers.

"That's something that we've lost, somewhere along the way. We need to regain that confessional part of the faith," said the Rev. Thom Rainer, head of LifeWay Christian Resources at the Southern Baptist Convention's headquarters in Nashville.

"It used to be common for people to go forward, rededicate their lives and get right with the Lord. … It was a chance to tell the pastor you needed help. It was important that our people knew they could do that."

The alternative is much worse, he stressed, in a telephone interview. If believers don't know how to reach out for help, or if they think they will be harshly judged if they do, they usually remain silent before using the exit door, for keeps.

The bottom line is shocking, said Rainer. If most churches could regain just the members who fled over the span of a decade -- for personal or private reasons, as opposed to dying or moving out of town -- worship attendance would triple.