PITTSBURGH -- Joan Houk has ministered to the sick and needy, run two Roman Catholic parishes that were without priests, and has presided over baptisms and funerals. Her calling now is to be a priest, she said.
Houk will be one of a dozen women participating in a ceremony today in which eight will proclaim themselves priests and four to be deacons.
The ceremony won't be recognized by the Catholic church, which has a 2,000-year tradition of all-male priesthood.
Similar ceremonies conducted by the group Roman Catholic Womenpriests have been held in other countries, and most of the participants have been excommunicated. It is the first time that Roman Catholic Womenpriests is holding a ceremony in the United States.
The Pittsburgh Diocese issued a statement saying that the ordination would not be valid.
``This unfortunate ceremony will take place outside the Church and undermines the unity of the Church. Those attempting to confer Holy Orders have, by their own actions, removed themselves from the Church, as have those who present themselves for such an invalid ritual," according to the statement released by the Rev. Ronald Lengwin, a spokesman for the diocese.
The diocese said they will welcome back anyone who chooses to leave the group.
Liberal Catholics say the ongoing clergy shortage and the rise in female lay leaders in American churches will eventually create pressure to ordain women.
More lay people than priests are working full time in American parishes and a significant number of the lay leaders are women.
But conservatives believe only males can be priests, as evidenced by Jesus' choice of men to be his apostles and the church's long tradition of allowing only men to serve.
A majority of Catholic respondents to an Associated Press-Ipsos poll taken just after the death of Pope John Paul II last year said they favored ordination of women.
Womenpriests said a male priest presided over the first ordination of seven women sponsored by the group in 2002 in Austria; the women were excommunicated by the Vatican in 2003.
``We need to claim for women their equal right with men to be ordained," Patricia Fresen said last year at a conference in Philadelphia on women in the church.
Fresen is a member of the group, in which she carries the title of bishop, and is one of three people presiding over the Pittsburgh ceremony.
Fresen said the unauthorized ordination was being done as a means to break what she called an unjust law.
The group said there are many examples of women with prominent roles in Jesus' ministry, including his mother, Mary, and Mary Magdalene.
``Women were definitely leaders in the early church and so that's what we're asking to go back to, the early leaders of women in the church and leading to ordination," said Aisha S. Taylor, executive director of the Fairfax, Va.-based Women's Ordination Conference.
Eileen DiFranco, 54, of Philadelphia, who will be participating in today's ceremony, said she received a letter from Cardinal Justin Rigali, the archbishop of Philadelphia, telling her that she is a threat to church unity.
``I want to hold [the church] to a higher standard," DiFranco said. ``I want it to be what it is capable of being, and that is an inclusive community."
Houk decided to pursue priesthood after listening to a speech by Fresen. Houk said she realizes she will face rejection for her choice, but said she's prepared for that.
``I do not intend to start a church of my own," said Houk, a 66-year-old, married mother of six and grandmother of five. ``I will not lead people away from the Catholic church but rather I hope to lead people to the church."