Calvinism vs. Determinism
when we enter the world of seventeenth-century theological debate, it is the purportedly predestinarian Reformed who take up the defense of human free choice and secondary causality against the more deterministic tendencies of Cartesian metaphysics, specifically the occasionalist conclusion, resting on a conception of necessary divine concursus, that God is the sole cause of all motion in the universe.
Richard A. Muller, Post-Reformation Reformed Dogmatics: The Rise and Development of Reformed Orthodoxy; Volume 1: Prolegomena to Theology, 2nd ed. (Grand Rapids, MI: Baker Academic, 2003), 128-129.