Upon [hearing] this, many of Jesus’ disciples turned back and refused to accompany Him anymore. [Note: They deserted Jesus physically as well as spiritually].
But Jesus said to him, “Nobody who begins plowing [a field] and then looks back [i.e., in regret for beginning such an arduous task] is suited for [serving in] the kingdom of God.”
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].
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.
These antichrists left our group [i.e., withdrew their fellowship from us], but they were not [really a part] of us, for if they had been, they would have continued [to participate] with us. But, by their leaving us, it proved that none of them were [really] a part of our group [after all].