Wherefore we faint not (dio ouk egkakoumen). Repeats from verse 1 Corinthians 1 . Our outward man (o exw hmwn anqrwpo), our inward man (o esw hmwn). In Romans 7:22 ; Colossians 3:9 ; Ephesians 4:22 , we have the inward man and the outward for the higher and the lower natures (the spirit and the flesh). "Here the decay (diapqeiretai) of the bodily organism is set over against the growth in grace (anakainoutai, is refreshed) of the man himself" (Bernard). Plato (Republ. ix, p. 589) has o ento anqrwpo. Cf. "the hidden man of the heart" ( 1 Peter 3:4 ). Day by day (hmerai kai hmerai). This precise idiom is not in LXX nor rest of N.T. It may be colloquial use of locative in repetition.