That ye be renewed (ananeousqai). Present passive infinitive (epexegetical, like apoqesqai, of alhqeia en twi Ihsou) and to be compared with anakainoumenon in Colossians 3:10 . It is an old verb, ananeow, to make new (young) again; though only here in N.T. The spirit (twi pneumati). Not the Holy Spirit, but the human spirit.