John 19:21

The chief priests of the Jewish people therefore said to Pilate, "Do not write, 'The King of the Jews,' but, 'he said, I am King of the Jews.'"

Now it was the Preparation Day of the Passover, at about the sixth hour. He said to the Jewish leaders, "Look, here is your King."

Pilate wrote a title also, and put it on the cross. There was written, "JESUS OF NAZARETH, THE KING OF THE JEWS."

Treasury of Scripture Knowledge

Then said the chief priests of the Jews to Pilate, Write not, The King of the Jews; but that he said, I am King of the Jews.

Pilate asked him, "Are you the King of the Jews?" He answered, "So you say."

An inscription was also written above him: "THIS IS THE KING OF THE JEWS."