I have NO idea what its about, and i probably will never know what its about.
But dude, I told you what it's about. I told you exactly what it says, and you... ignored it? I don't know. You tell me.
Pascal's Wager is what you stated earlier: "Wouldn't it make more sense to live as though the God of the Bible does exist?"
The fact that you think its a fairy tale rule to not have premarital sex says a lot about you
I'll choose to ignore this blatant ad hominem and instead counter with a challenge: I dare you to have 0 sex -- no "2nd base", no "3rd base"; only kissing -- until you're married.
If you're not married to that person, the only thing you're allowed to do is kiss them.
It's a very tough challenge, and not one that *anyone* should want to complete. Would you buy a car without test driving it? No? Then why would you say "I want to be with this person forever" (but let's be real here, "forever" means <10 years; until you're divorced) yet have no idea what how well they "drive"?