Thousands of children will hit the pavement in a few weeks dressed as everything from Sponge Bob SquarePants to superheroes, ready to claim candy and treats from their neighbors. Some churches, however, are troubled by the themes of Halloween. "It seems like it centers around the devil," said Gerald Zimmerman, 34, town of Unity, a member of the Unity Mennonite Church. "We take no part in it because of the devilish aspects of it." "We feel there's a lot more constructive things to think about," he said. The Kamp Kidz program at Faith Baptist Church in Marshfield - a weekly afterschool gathering for students in kindergarten through fifth grade - will have its annual harvest party on Oct. 29. The activity will include games and candy, but not costumes, said the Rev. Larry Sheahan. "We're trying to have something that's a positive alternative to Halloween," he said. "Halloween is a holiday with dark occultic origins, which many people do not realize." Some members in the church will go trick-or-treating, but Sheahan said he recommends those children wear positive-themed outfits, possibly going as Bible characters."I would not want children dressing in costumes like witches, when witchcraft is actually practiced today right here in Marshfield, and it's a growing danger," Sheahan said. "We need to be light in the darkness, not mimicking the darkness." However, Dan Kitz haber, youth coordinator at St. John the Baptist Catholic Church in Marshfield, said the holiday has Christian origins and should be celebrated by members of the church - but not in devilish costumes.