When the United Methodist Church ordains ministers, the rite includes the kind of vow that religious groups have long used to underline the ties that bind.

In this case, the candidate for ordination is asked to accept the church's "order, liturgy, doctrine, and discipline, defending it against all doctrines contrary to God's Holy Word, and committing yourself to be accountable with those serving with you, and to the bishop and those who are appointed to supervise your ministry?"

The candidate replies: "I will, with the help of God."

These vows may create problems for some clergy -- as noted in a remarkably blunt letter published recently by the independent Methodist Federation for Social Action. The context was the U.S. Supreme Court debate about a Health and Human Services mandate that requires most religious institutions to offer employees health insurance covering sterilizations and all FDA-approved contraceptives.

Currently, actual churches and denominations are exempt. And there's the rub, for the letter's anonymous author.

"I chose to go on birth control because I didn't want to get pregnant and I wanted to have sex. Because I am a clergywoman in The United Methodist Church, and I'm single, that information could get me brought up on charges, and I could lose my ordination," she wrote.