157. Or once more. The grace of God is never superabundant, humanly speaking, for it is spiritual. Who can measure its greatness or its breadth, which one cannot see? Faith, if it were as a grain of mustard seed, can transplant mountains—and more than a grain is not granted thee. If grace dwelt fully in thee, wouldst thou not have to fear lest thy mind should begin to be elated at so great a gift? For there are many who have fallen more terribly, from spiritual heights, than if they had never received grace at all from the Lord. And he who has little has no lack, for it is not tangible so as to be divided; and what seems little to him that has is much to him that lacks.