Institutes of the Christian Religion
Calvinist theology, which emphasizes God's sovereignty over creation, inspired such environmentalists to see God's glory in nature. Seeing that Calvinists like Presbyterians believe in God's sustaining power, they consider that the Divine intimately relates to the created order through providence. In his "Institutes of the Christian Religion", John Calvin further taught that nature acted as the most apparent medium of God's revelation outside of Sacred Scripture. The Westminster Confession of Faith echoes this teaching in the first chapter on Holy Scripture and the fourth on creation.