Truly, truly, I tell you, the time is coming, and is now [actually] here, when those who are [spiritually] dead will hear the voice of the Son of God; and those who hear [i.e., and heed His message] will have [spiritual] life.
Then the Jews [who were assembled in the synagogue. See verse 59] began arguing bitterly with one another, saying, “How can this man give us his physical body to eat?”
But there are some of you who do not believe [in me].” For Jesus knew from the beginning which ones would not believe [in Him] and which one would turn Him over [i.e., to the Jewish authorities].
Upon [hearing] this, many of Jesus’ disciples turned back and refused to accompany Him anymore. [Note: They deserted Jesus physically as well as spiritually].
Then Jesus’ [half-] brothers said to Him, “You should leave here and go to Judea so your disciples [there] can see the [supernatural] deeds you are performing.
He spoke about these things in all of his letters, which contain some parts that are difficult to understand, and [because of this], ignorant and unstable people twist [his writings], just as they also do to the other Scriptures, to their own destruction.