Closed Covenant of Works
Because the law has now become weak by sin, this method of justification is impossible. Thus we treat of the evangelical justification proposed to us in the covenant of grace, which we deny to be founded in inherent righteousness.
Francis Turretin, Institutes of Elenctic Theology, ed. James T. Dennison Jr., trans. George Musgrave Giger, vol. 2 (Phillipsburg, NJ: P&R Publishing, 1992–1997), 638.