that salvation is wholly of grace, when men are doubting whether they need grace at all; it insists upon the necessity of the Spirit’s work within the soul, when men regard the bare idea of such an influence as the dream of the enthusiast. Nor does the Galatian Epistle encounter only the broad stream of popular scepticism; it searches out various byepaths of error in which men are prone to wander. It teaches the danger of ceremonialism; it points out that public opinion is not the test of truth;