Jesus didn't mean just Caesar, the man. He meant government in general. BUT—what slips by a lot of people, including his interrogators, was that he regarded everything and everyone as belonging to God. Including Caesar, governments, and all.

It was a weasel answer and Jesus intended it to be so, despite the fact that he spoke (what he considered to be) the truth, fully aware that they wouldn't grasp what he was really saying.

Don Firth