even when we were dead in our trespasses, made us alive together with Christ—by grace you have been saved— (ESV)
Every day we see people walking around. They appear to be very much alive. We have conversations with them. We work with them. They are everywhere. But they are dead! I am talking about people who have not been made alive by the resurrection power of Jesus Christ. Paul tells us that we were dead in our trespasses, but then made alive with Christ. It's almost like nonbelievers are spiritual zombies. They have temporary physical life, but the life that matters, their spiritual life is dead.
Now, some can take great offense to this idea that we are dead in our trespasses, or sins. I have even heard some very "religious" people claim that they did not sin at all. They may make some mistakes, but no sins. These are some of the very dead people that I am talking about. They do not know they are dead. I think a fair question becomes, who is it that has sinned? Thankfully, Paul answers that question very directly in Romans:
 for all have sinned and fall short of the glory of God,  and are justified by his grace as a gift, through the redemption that is in Christ Jesus, (ESV)
Who has sinned? Who has been walking around while being spiritually dead? Who are the spiritual zombies? Everyone! Paul says ALL have sinned. No exceptions. The sad reality is that many spiritually dead people are so offended that they have been called dead that they will refuse to receive the gift of spiritual life that Christ offers to them.
Some spiritually dead people go around trying to do things that spiritually alive people would do. They call them good deeds. But, no matter how nice those deeds appear, they are done by spiritually dead people and achieve for them nothing. The only way that we can go from being spiritually dead to spiritually alive is by placing our faith in Jesus Christ. He then gives us the gift of life. And I emphasize, as Paul does, that it is a gift. You cannot work your way to life.
Do you know any spiritual zombies? They may look physically alive, but their spiritually dead condition will end up in their eternal torment. Find a spiritual zombie and introduce them to the life giving Savior, Jesus Christ.