So then it is not of him that willeth - hath the inward desire
nor of him that runneth - maketh active effort (compare 1Co 9:24, 1Co 9:26; Phi 2:16; Phi 3:14). Both these are indispensable to salvation, yet salvation is owing to neither, but is purely “of God that showeth mercy.” See on Phi 2:12, Phi 2:13, “Work out your own salvation with fear and trembling: for it is God which, out of His own good pleasure, worketh in you both to will and to do.”