2CORINTHIANS 5:17 Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
WHEN A MAN IS BORN AGAIN HE IS AN INNOVATION FROM GOD. THAT MEANS NOTHING CAN STAND AGAINST HIM. OLD THINGS ARE PAST AWAY AND EVERYTHING ABOUT HIM IS NEW.
The past is wiped out and everything about him is new. Therefore he is a new creature that never existed before.