That's an... interesting take on predestination. The idea is that God already knows what you're going to do, because he's omniscient. It's not a matter of just picking you and then whatever you do is fine. He already 'knew' what you were going to do. So if you're good, he already knew and you're in.
If you wanna get into a religious debate about predestination, though, strap in. It's a doozy.