Governor Cuomo put forward his same-sex marriage legislation, something he said he would only do if he had enough votes to pass it in the State Senate.
For holdouts like Republican State Senator Ball, this is key:
To ensure that the bill does not intrude into matters of religious belief, the Marriage Equality Act affirms that no member of the clergy can be compelled to solemnize any marriage. This bill grants equal access to the government-created legal institution of civil marriage while leaving the religious institution of marriage to its own separate and fully autonomous sphere. The bill also guarantees that religious institutions and benevolent organizations such as the Knights of Columbus remain free to choose who may use their facilities for marriage ceremonies and celebrations or to whom they provide religious services, consistent with their religious principles.