28 Then they led Jesus from Caiaphas to the Praetorium, and it was early morning. But they themselves did not go into the Praetorium, lest they should be defiled, but that they might eat the Passover. 29 Pilate then went out to them and said, "What accusation do you bring against this Man?" 30 They answered and said to him, "If He were not an evildoer, we would not have delivered Him up to you." 31 Then Pilate said to them, "You take Him and judge Him according to your law." Therefore the Jews said to him, "It is not lawful for us to put anyone to death," 32 that the saying of Jesus might be fulfilled which He spoke, signifying by what death He would die.
Matthew Henry's Commentary on John 18:28-32
Commentary on John 18:28-32
(Read John 18:28-32)
It was unjust to put one to death who had done so much good, therefore the Jews were willing to save themselves from reproach. Many fear the scandal of an ill thing, more than the sin of it. Christ had said he should be delivered to the Gentiles, and they should put him to death; hereby that saying was fulfilled. He had said that he should be crucified, lifted up. If the Jews had judged him by their law, he had been stoned; crucifying never was used among the Jews. It is determined concerning us, though not discovered to us, what death we shall die: this should free us from disquiet about that matter. Lord, what, when, and how, thou hast appointed.