Let him turn away (ekklinatw). First aorist active imperative third person singular of ekklinw, where the LXX has ekklinon (second person singular). Old verb, in N.T. only here, Romans 3:12 ; Romans 16:17 . Peter adapted the passage all through to his own construction and use. So as to poihsatw (let him do) for poihson (do thou), zhthsatw (let him seek) for zhthson (do thou seek), diwxatw (let him pursue) for diwxon (do thou pursue), all first aorist active imperatives (of poiew, zhtew, diwkw). See Hebrews 12:14 for "pursuing peace." If men only did!