“The doctrine of the divine covenant lies at the root of all true theology. It has been said that he who well understands the distinction between the covenant of works and the covenant of grace is a master in divinity.
I am persuaded that most of the mistakes which men make concerning the doctrines of Scripture are based upon fundamental errors with regard to the covenants of law and of grace.
May God grant us now the power to instruct, and you the grace to receive instruction on this vital subject.”
–Charles H. Spurgeon, “The Wondrous Covenant,” in The Metropolitan Tabernacle Pulpit Sermons, vol. 58 (London: Passmore & Alabaster, 1912), 58: 517.