This document describes the polity and leadership structure of Presbyterian churches. It discusses that Presbyterian polity rejects governance by single bishops and differs from congregational polity by having a hierarchy of local congregations, presbyteries, and synods. The roles of elders (presbyters), deacons, doctors/teachers, and saints (laity) are outlined based on teachings from the Bible and John Calvin. The goal of this polity is to equip believers for ministry and building up the body of Christ.