Thank you Neil, but what does it mean?

I got this picture emailed to me from my good friend Neil. He comments here on occasion and is one of those sort of "scary smart" kind of people. I have a lot of respect for him and what he thinks and does.

Anyway, enough of the Neil love, he sent me a picture of which I have no idea what it means.

So I post is here for comments and help to understand what it is saying.

In case you cannot read the sticker it states, "On judgment day you'll Wish your car had JESUS STICKERS"