In a city famous for having a house of faith on nearly every street corner, The Grove Church stands out mostly for the number of early adherents. The first formal service, held Oct. 22, drew about 600 people, campus pastor the Rev. Stephen Lohoefer said. “We had a lot of people standing,” he said. “It was a great ‘problem.’”The Grove, an offshoot of Highland Park United Methodist Church, is meeting in a renovated gymnasium on property that used to house Schreiber Memorial UMC.