Mark 15:2

And Pilate asked him, art thou the king of the Jews?
&c.] Which either he had heard before that it was said by him, and his followers; or was what the Jews now suggested to him as his crime, which they desired sentence of death might pass upon him:

and he answering, said unto him, thou sayest it;
which is all one as if he had said, I am; (See Gill on Matthew 26:25); for so he was in a sense, in which he explained himself to Pilate's satisfaction, ( John 18:36 John 18:37 ) ; (See Gill on Matthew 27:11).