Orthodox Presbyterian Church
The Orthodox Presbyterian Church (OPC) is a confessional Presbyterian denomination located primarily in the United States, with additional congregations in Canada, Bermuda, and Puerto Rico. It was founded by conservative members of the Presbyterian Church in the United States of America (PCUSA), who objected to the rise of Liberal and Modernist theology in the 1930s. The OPC is considered to have had an influence on evangelicalism far beyond its size.
J. Gresham Machen was instrumental in founding the Orthodox Presbyterian Church.
John Calvin is one of the key figures of the Protestant Reformation.
Presbyterianism is a Reformed (Calvinist) Protestant tradition named for its form of church government by representative assemblies of elders. Though there are other Reformed churches that are structurally similar, the word Presbyterian is applied to churches that trace their roots to the Church of Scotland or to English Dissenter groups that formed during the English Civil War.
Iona Abbey in Scotland was founded by Saint Columba
John Knox
The Ordination of Elders in a Scottish Kirk, by John Henry Lorimer, 1891. National Gallery of Scotland.
Celtic cross draped for Easter at a Presbyterian church