Regardless of your religious persuasion most human beings surely recognize that a Jesus vanity plate is a not a reasonable offering to be included in Florida's stable of over 100 different vanity plates. I would assume it's a violation of church and state and apparently so did the Americans United for Separation of Church and State.
Although the initial proposal made it as far as the state senate floor just 2 weeks ago, the crucified Jesus plate (below - yes it's real) and the stained glass window plate that read "I believe" were voted down. "I believe" referring to the sci-fi television show X-files and Fox Mulder's belief in aliens. I think.