Social justice is a teaching born in the Enlightenment, steming from Hume, Bentham, Smith, Kant, and Rousseau. Francois-Noel Babeuf, is a lesser known, but no less important, name in this history as well.
What the theologians declared united by God, philosophy’s great men tore asunder. However, by God’s grace, the Westminster Divines wisely navigated a Biblical view of ethics.
Orthodoxy gave way to “tolerance” as the goal of the church. Liberal factions grew until in the 1920’s they gained control of the major Protestant denominations.