But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus Christ, his Son, cleanses us from all sin.

 (vi) The darkness is characteristically unfruitful. Paul speaks of the unfruitful works of darkness ( Ephesians 5:11). If growing things are despoiled of the light, their growth is arrested. The darkness is the Christless atmosphere in which no fruit of the Spirit will ever grow. 