Jesus therefore knowing (having found, perceived ( γνούς), by ominous movements in the crowd, or in any other way still more explicit) that they were about to come and by violence, or force, seize him in order that they might make him King.
This movement was not an unnatural one. They were on the way to Jerusalem, and they were thirsting to throw off the yoke of Rome and of Herod, and probably indignant to the extreme with the "deep damnation" of John the Baptist's death.
In such a frame, the display of power and resources which they had just witnessed pointed Jesus out as their popular idol, and encouraged the belief, which did not die out till it was quenched in blood.
The bald suggestion would clash absolutely with the Lord's own plan, with the Father's design concerning him. It would seem that the disciples manifested great reluctance to leave Christ or the crowd; for both Matthew (Matthew 14:22) and Mark (Mark 6:45) imply that Jesus had to use special means to induce them to depart ( ἠνὰγκασεν).
He compelled them to do so. If we had nothing but the synoptic narrative to guide us, we might suppose that Jesus had difficulty in resisting the desire of the disciples to remain always at his side; or that the intensity of their affection was interfering too much with the need in which he felt of retirement and solitude.
John's statement here illumines the language of the other Gospels. The disciples themselves were strongly moved by the passions of the thousands; they were sharing in the general enthusiasm. To quench such an unholy or unspiritual view of the true Prophet and King, the disciples must be separated from the crowd, and Christ had to overcome by some special utterance of his authority the reluctance of the twelve to embark in their ship.
Having done this, and without their help, he sent the multitudes away. He withdrew,£ for the second time, to the mountain (cf. verse 3), and this time himself alone. These occasional separations from the apostles were undoubtedly part of the discipline to which they were subjected.
They were taught that, when he was no longer visible to them, he might still be spiritually present and able to succour them.