George Gillespie was a Scottish theologian and minister in the 17th century, known for his significant contributions to the Presbyterian tradition. He was born in 1613 and became a prominent figure during the Scottish Reformation, advocating for the principles of Reformed theology and the authority of scripture. Gillespie is best known for his work "Aaron's Rod Blossoming," which defended the Presbyterian form of church government against Episcopalian practices. He played a crucial role in the Westminster Assembly, where he helped shape the Westminster Confession of Faith, a foundational document for many Reformed churches.