<p>5:11 <i>And have no fellowship with the unfruitful works of darkness, but rather reprove them</i>- &quot;But rather reprove them&quot; continues the theme so often seen in this section- of redirecting mental and spiritual energy from sin towards positive spirituality. Not sharing in the works of darkness is one thing; but enforcing our separation from wrong doing is of itself negative. The positive thing is to redirect that mere avoidance of sin into actually trying to save the sinners. Having written here of light and darkness (:8), perhaps Paul's mind is in Jn. 3:20, which says that the light is what reproves. If we are of the light we will naturally reprove the darkness; so this is an appeal in another form to live as light. Verse 13 will make this point explicitly- it is the light which reproves. I have argued throughout this section that Paul is urging us to live the life of the Spirit rather than the flesh; and it is by the Comforter, the Holy Spirit within us, that we reprove the world of sin (Jn. 16:8; 1 Cor. 14:24).</p>