Death, Death, and More Death!

What is spiritual death? Does it have the same weight as physical death, or can you repent and return to God? Is all spiritual death equal? These questions drove me to study this topic, one my cousins and I have been theorizing on for a while. The Bible has a lot to say about spiritual death, and it is vital that we understand what spiritual death is - after all, the second death is spiritual. The permanent kind. Rev 21:8 KJV But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death. There’s no coming back from that one. What about spiritual death while we are still alive physically? Ephesians 2:5 KJV Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;) Paul says that we were spiritually dead before we had the blood of Christ applied to our sins. Or does h...