But he who hates his brother is in the darkness, and walks in the darkness, and doesn't know where he is going, because the darkness has blinded his eyes.
"Fellowship" (Gr. koinonia) is the less common term occurring only four times in 1 John: 1 John 1:3 (twice), 6, 7. "Know" is more common. Ginosko (to know experientially) appears 24 times: 1 John 2:3-5; 1 John 2:13 (twice), 14, 18, 29; 1 John 3:1 (twice), 6, 16, 19, 20, 24; 1 John 4:2; 1 John 4:6 (twice), 7, 8, 13, 16; 1 John 5:2; 1 John 5:20. Oida (intellectual knowledge) appears 15 times: 1 John 2:11; 1 John 2:20-21 (twice), 29; 1 John 3:2; 1 John 3:5; 1 John 3:14-15; 1 John 5:13; 1 John 5:15 (twice), 18, 19, 20. The noun ginosis (experiential knowledge) is absent from this epistle.