Samuel Rutherford was a Scottish Presbyterian theologian, pastor, and covenanter, known for his preaching, his correspondence, and his defence of Presbyterian church government. He was an influential figure among the Scottish Commissioners at the Westminster Assembly and a leading voice in the Covenanter movement. ^[raw/en/wcf-ch01-s04.md]
Rutherford was born at Nisbet, Roxburghshire, and educated at the University of Edinburgh. He served as minister of Anwoth in Galloway, where his preaching drew large crowds despite persecution from the local episcopacy. For his nonconformity, he was exiled to Aberdeen in 1636, where he wrote his most famous work, Letters — a collection of spiritual correspondence that has become a devotional classic.
He was appointed Professor of Divinity at St. Andrews University in 1639 and served as one of the Scottish Commissioners to the Westminster Assembly (1643–1647). He also served as a member of the Scottish General Assembly and was one of the principal authors of the Westminster Standards.
As a Scottish Commissioner, Rutherford was a defender of Presbyterian church government against both Episcopacy (rule by bishops) and Independency (rule by individual congregations). His book Lex, Rex ("The Law is King," 1644) argued for constitutional government and limited monarchy, grounding political authority in the Word of God and the covenant between ruler and people. The book was later burned by order of the British Parliament after the Restoration, and Rutherford was indicted for treason — a charge he died before facing.
Lex, Rex is Rutherford's most famous work and an important treatise on political theology in the Reformed tradition. He argued that government is not absolute but is limited by the law of God, the fundamental law of the nation, and the consent of the governed. Kings are subject to the law, not above it. If a ruler becomes a tyrant, the people — through their lawful representatives — have the right to resist.
This teaching profoundly influenced later political thought in Scotland, England, and America. The American founders drew upon Rutherford's covenantal political theory, and his ideas echo in the Declaration of Independence's assertion that governments derive their just powers from the consent of the governed.
Rutherford's Letters are among the most cherished spiritual writings in the English language. Written during his exile in Aberdeen, they breathe a passionate devotion to Christ and a longing for the spiritual welfare of his flock. These letters have been a source of comfort to Christians facing suffering and persecution.
A characteristic passage: "I have found that the Word of God is a lamp to my feet, and it hath led me through many dark steps. When all other comforts fail, this one abides — that God hath spoken, and His Word is sure." ^[raw/en/wcf-ch01-s04.md]
Rutherford was a fierce defender of the authority of Scripture against all human encroachment. He suffered imprisonment for his fidelity to the Word. His testimony echoes the principle that every human authority must be tested by Scripture: "The Word of God is the only rule of faith and life. We may not add to it nor detract from it."