Salvation is by Grace through Faith in Christ APART from Works. I have always seen in Scripture a promise of a more active eternal lifestyle--with work and responsibility commensurate with one's service on earth. Apart from saving faith established by the Holy Spirit through the Gospel, the quality of our service on earth which is a sign of devotion though tribulation as well as our capability for further service after the master returns and judges. The quality of that service ranges from worthless to good to great, but even though the service is deemed useless, the poor performing Christian with faith will be in heaven. Consider: Matt 25:14-30; Luke 19:11-27; 2 Cor 5:9-10; 1 For 3:12-15; John 4:36; Rev 22:12. These two aspects of salvation--saved/damned (whether or not our name is recorded in the book of life) and other book(s) used to judge deeds--either for more honor in heaven or more punishment in hell., Rev 20:12 "And I saw the dead, the great and the small, standing before the throne, and books were opened; and another book was opened, which is the book of life; and the dead were judged from the things which were written in the books, according to their deeds" and Danial 7:all, especially verse 18. and other passages that based the (degree) of judgement on deeds--especially for those who do not respect Scripture. Of course this interpretation is not without issues.