Elder

Presbyterian church governance distinguishes two kinds of elder serving together on a congregation's session, its local governing body: the teaching elder, an ordained minister responsible for preaching and the sacraments, and the ruling elder, a layperson elected by the congregation to share in the church's spiritual oversight and governance without necessarily possessing formal theological training or performing sacramental functions. This shared eldership reflects Presbyterianism's foundational conviction, developed particularly by John Calvin and his followers, that church government should rest with a plurality of elders acting collegially rather than with a single bishop or, at the opposite extreme, with the whole congregation acting directly, a middle position between episcopal and purely congregational polity that gives the tradition its name, from the Greek presbyteros, elder.

Ruling elders, once ordained, typically serve renewable terms rather than holding office for life, and Presbyterian denominations vary in whether that ordination is understood as permanent, meaning a former active elder retains the underlying ordained status even after rotating off active session service, a question that has occasioned real debate within different Presbyterian bodies over the exact theological weight the office of ruling elder carries.

The Presbyterian eldership traces its modern form to John Calvin's reforms in sixteenth-century Geneva, where a consistory of ministers and lay elders together exercised oversight of the city's moral and religious life, a structure Calvin and his associates, including his student John Knox, who carried the model to Scotland, argued more faithfully reflected the New Testament church's own leadership pattern of a plurality of elders than either the Roman Catholic episcopal hierarchy or the more radical congregational independence some other Reformation movements adopted. Knox's Scottish Reformation established Presbyterian polity as the governing structure of the Church of Scotland, from which it spread through Scottish and later broader British emigration to North America, where Presbyterian denominations became a major and doctrinally influential branch of American Protestantism, particularly through institutions such as Princeton Theological Seminary.

The session, a congregation's own body of teaching and ruling elders, sits within a wider Presbyterian governance structure of ascending representative courts, the presbytery, grouping several congregations' sessions, and, above it, a synod or general assembly governing the denomination as a whole, a layered representative system Presbyterians present as a deliberate middle path between the concentrated authority of episcopal church government and the fully autonomous local authority of congregational polity.