Pennsylvania Pastor Frank Schaefer, the United Methodist Church pastor suspended over officiating a gay wedding, says he won't leave the church voluntarily.

“I cannot in good conscious surrender my credentials voluntarily. I cannot,” Schaefer said during a press conference held Monday in Philadelphia. “Because I feel called to be a minister. … I cannot voluntarily surrender my credentials because I am a voice now for many of the tens of thousands of LGBT members in the church.”

Schaefer, pastor at Zion United Methodist Church of Iona in Lebanon, presided over the 2007 wedding of his son Tim Schaefer in Massachusetts, which legalized gay marriage in 2004.

Last month, a jury of 13 fellow pastors convicted Schaefer of breaking church law and suspended him for 30 days.

An unrepentant Schaefer, who has three gay children, said that he plans to defy a church order calling on him to reconcile his teachings with church doctrine or surrender his credentials. He said that he could not uphold the church's Book of Discipline, calling it discriminatory.

“I cannot uphold those discriminatory laws and the language in the United Methodist Church's Book of Discipline that is hurtful and harmful to our homosexual brothers and sisters,” he said.

Schaefer is scheduled to meet with church officials on Thursday. He said that he is considering moving to an LGBT-affirming church but would wait until after Thursday's meeting before making a decision.

“I love being a United Methodist minister,” he said. “And I would prefer to remain a United Methodist minister so I can do some awesome work within the United Methodist church towards dismantling the discrimination.”