|INRI is an acronym of the Latin inscription (Iesus Nazarenus, Rex Iudaeorum), which translates to English as "Jesus the Nazarene, King of the Jews."|
First, this sign was the only thing ever written about Jesus during his lifetime. Second, and somewhat perversely, this sign is an advertisement, part of the spreading of the good news of Jesus Christ.
But finally, I think that this sign is incorrect. Jesus is not just King of the Jews. This sign is only correct insofar as Jews are part of all creation. Yes, Jesus is King of the Jews, but he's also King of all creation.