She is also the co-founder of Suriname Indigenous Health Fund. Sarah led a team of Indigenous and church leaders to draft the World Council of Churches (WCC) Statement on the Doctrine of Discovery and its enduring impact on Indigenous Peoples, which was adopted in 2012, and organized an international coalition to deepen institutional commitment to an Indigenous-led Program at the WCC. Sarah is working within an international ecumenical movement to dismantle the Doctrine of Discovery and to build a solidarity movement promoting dialogue with resource extractive industries among people of faith. She is a member of Seattle Mennonite Church.