The Book of Life is one thing in time … and something different in eternity. It is a registry that contains the names of every person who has ever lived throughout history. If they were not believers their name is removed at physical death. Only believers remain in the Book of Life.
Because each believer is in the Royal Family of God, he/she has a Title of Royalty also recorded in the Book of Life (Philippians 4:3; Revelation 3:5; 13:8; 17:8; 20:12, 15, 21:7).