Are you sure?

Another book was opened, which is the Book of Life. (Revelation 20:12)

Two. . .soldiers went to visit. . . Westminster Abbey but found its doors locked. Arthur Stanley,. . .dean of the Abbey. . ., was walking outside. . .and noticed them. When he learned that they couldn't return the next day, he. . .gave them a personal tour. . . .

Stanley talked about the honor of being immortalized by having one's name inscribed on a monument inside. Then he added, "You may have a more enduring monument than this, for this building will molder into dust and be forgotten, but you, if your names are written in the Lamb's Book of Life, will abide forever.". . . That day they made sure of their salvation.

Are you sure that your name appears in the Lamb's Book of Life?