Schools have been left reeling after revelations a decree by the Sydney diocese was addressed to school leaders asking them to sign a document affirming, they believe marriage is between a man and a woman only. An “issue of consternation”, several principals have raised their concerns to the Archbishop of Sydney, Kanishka Raffel over the 15-year-old statement of faith. Principles speaking out against the decree, told The Herald they were troubled over the implications for their gay students and parents, as well as the over “aggressive” isolation of gay marriage in what is a general statement of Christian faith. “They’re engineering their boards to think in a morally conservative way that’s harmful for their students,” a woman said on the condition of anonymity.