LinkChristians, Muslims and Jews are all fighting against the sexual orientation regulations with a wrecking clause that would render them meaningless: "Nothing in these regulations shall force an individual to act against their conscience or strongly held religious beliefs." Anyone could use their "conscience" to discriminate against gays.
Get one thing clear: this law does not stop religions from banning gays joining their congregations or becoming priests. (Though they don't seem to be very good at it.) But it does oblige any organisation or business offering services to the public to offer them equally to all comers. Bizarre and repugnant ads in newspapers from Christian organisers have spread outright lies about what this law does.