The Legislative Yuan building in Taiwan was surrounded with anti-gay marriage protesters yesterday as the office reviewed a bill that would legalize same-sex marriage.

If the bill were to pass it would make Taiwan the only country in Asia to institute marriage equality.

“Only a heterosexual marriage can create the possibility of bearing children and only then can we sustain the nation’s next generation,” said Wang Tzu-hao, a pastor representing the group, South China Morning Post reports.