Albert Barnes on John 18:35

Am I a Jew? Am l likely to be influenced by Jewish prejudices and partialities? Am not I, being a Roman, likely to judge impartially, and to decide on the accusations without being biassed by the malignant charges of the accusers?

Thine own nation &c. In this Pilate denies that it was from anything thing that he had observed that Jesus was arraigned. He admits that it was from the accusation of others; but then he tells the Saviour that the charge was one of moment, and worthy of the deepest attention. It had come from the very nation of Jesus, from his own countrymen, and from the highest authority among the people. As such it demanded consideration, and Pilate besought him to tell him what he had done--that is, what there had been in his conduct that had given occasion for this charge.

(w) "own nation" Jn 19:11, Acts 3:13