Practice what he preached bumper sticker

I found a bumper sticker that says, “Practice what he preached,” with an image of a person who I assume to be Jesus of Nazareth. Below the imperative statement, many religious symbols are displayed. Just what does this mean, and is it correct?

Here’s the long version of my reply to this sticker’s message:

Here’s the short reply to this sticker’s message:

Which video do think is better?

Get a Contradict Sticker!