6:56 The word for "eat" is "troogoo" which means, according to Lidell-Scott (the overall Greek, not just NT, dictionary, "to gnaw, nibble, munch, of herbivorous animals, as mules." If you were not grossed out enough already...here we go!
6:60 The word for "teaching" is simply "ho logos." The teaching is not the problem, simply the logos is!
6:61 Jesus asks them if they have been offended; literally, "Has this scandalized you?"
6:63 One of my favorite words in the NT: "zoopoie-oo" "make alive" Here we see the common ground of Paul, Peter and John; the work of the Spirit is to make-alive! (1 Pet 3:18; 2 Cor 3:6)
6:64 Jesus says, "The words that I have spoken are Spirit and life." Actually, Jesus says, "The words that I have spoken is Spirit and life." Ie, the words of Jesus form a coherent unit, the Logos, that early people complained was hard.
6:66 Some of the disciples stop following Jesus; but literally it is "stopped walking with him."
6:69 "We have come to believe and know..." It is interesting that John puts believing before knowing. Come, see, believe, know and live...what might be the ordo salutus here?