“In Puritan thinking, the Christian life was a heroic venture, requiring a full quota of energy,... For the Puritans, the God-centered life meant making the quest for spiritual and moral holiness the great business of life.”
Leland Ryken, “The Original Puritan Work Ethic,” Christian History 89 (2006), https://christianhistoryinstitute.org/magazine/article/original-puritan-work-ethic.