The Episcopal bishop of Long Island, N.Y., is ordering gay priests to get married or stop living together.

The edict comes as gay marriage is set to become legal in the state of New York on Sunday.
    
The episcopal bishop of New York says gay clergy must marry "in due course" but added that churches in the diocese are off limits until further guidance from the national denomination.

Meanwhile, many mainline protestant denominations are also struggling with same-sex marriage because they've taken steps toward accepting gay couples but have not changed their official definition of marriage. 

"It's a challenge for us," said Tony De La Rosa, administrator of the Presbytery of New York City, a regional body of the Presbyterian Church (U.S.A.). "I think this is a moment of great tumult in the sights of the church."