Theological Institutes was a critical landmark in the development of Methodist doctrine. Originally published in 1831 in four volumes, Watson's work was the first attempt to systematize John Wesley's theology. Influencing and guiding the later systematic theological work for Methodist theology, Watson's Institutes was the main Methodist textbook for systematic theological studies and remained a primary text for over 50 years after his death.

Groen van Prinsterer’s Unbelief and Revolution is a foundational work addressing the inherent tension between religion and modernity. As a historian and politician, Groen was intimately familiar with the growing divide between secular culture and the church in his time. Rather than embrace this division, these lectures, originally published in 1847, argue for a renewed interaction between the two spheres. Groen’s work served as an inspiration for many contemporary theologians, and as a mentor to Abraham Kuyper, he had a profound impact on Kuyper’s famous public theology.