John Calvin Commentary John 18:12

"So the band and the chief captain, and the officers of the Jews, seized Jesus and bound him," — John 18:12 (ASV)

Then the band of soldiers and the captain. It might seem strange that Christ, who laid the soldiers prostrate on the ground with a single word, now allows himself to be taken. For if he ultimately intended to surrender to his enemies, what need was there to perform such a miracle? But the demonstration of divine power was advantageous in two respects. First, it serves to remove the offense, so that we may not think that Christ yielded as if he had been overcome by weakness. Secondly, it proves that in dying he was altogether voluntary.

Therefore, to the extent that it was useful, he asserted his power against his enemies. But when it was necessary to obey the Father, he restrained himself, so that he might be offered as a sacrifice. But let us remember that the body of the Son of God was bound, so that our souls might be freed from the cords of sin and of Satan.