As a result, he gives us the free gift of salvation and eternal life. This eternal life is the God-kind of life that empowers us and enables us to literally live forever. In order to fulfill your role in his eternal divine plan and purpose, you have to live forever. So, he gifts you his eternal life. Those who refuse to align with his will and way, ultimately cease to exist. He will not or cannot force them to work with him forever. So, goodbye. They are gone.  Yes, our salvation delivers us from sinning or living in sin. Nevertheless, even if Lucifer had never rebelled and even if we humans do not do very terrible things, we will still be in need of salvation and eternal life. To receive salvation is to be crowned a bonafide spiritual son of God. To receive eternal life or to have eternal life fully functional in your life is to be crowned with the ability to live forever, endlessly, ruling and reigning with the everlasting, ever-loving, all-powerful heavenly Father, the First Source and Divine Center.  We mortals are not created or born with eternal life inherent within us. And we were not born having the absolute, eternal perfection of God. Same goes for some celestial beings like Lucifer. If Lucifer and all other unseen beings who rebelled had the absolute, eternal perfection of "the Father in heaven", they would never ever had rebelled or sinned. The ability or tendency to sin would not have been present. Some of God's children or creatures, terrestrial and celestial alike... ...some... ...were intentionally not created with the absolute, spotless, infallible perfection of God. They were created with varying degrees of perfection and then commanded to EXPERIENCE LIFE and grow or evolve to become perfect as the heavenly Father is perfect. And there are amazing reasons for this.