Salvation is by grace through faith. Grace is the source of our salvation, and faith is the condition.
There is a judgment coming for us all. One day we will stand before God and have to answer for what we have done, left undone, what we have said, left unsaid, and the sins that we have committed. We can live in fear of that day, or in hope knowing that Jesus life, death, and resurrection have already saved those who believe in him.