Reference: Book of Life
Hastings
The legalistic conception of morality which existed among the Jews involved a record of the deeds of life on the basis of which the final judgment of God would be given. Allied with this was another conception, derived from the custom of enrolling citizens (Jer 22:30; Ne 7:5,64; 12:22 f.; cf. Ex 32:32), of a list of those who were to partake of the blessings of the Messianic Age. A second natural step was to conceive of God as keeping two sets of books, a Book of Life (Da 12:1 ff., Mal 3:16; Ps 69:28) for the righteous, and a Book of Death for the wicked (Jub xxx 20
See Verses Found in Dictionary
Nevertheless, do not rejoice over the [evil] spirits submitting to you, but rejoice that your names are written in heaven [i.e., in the book of life. See Rev. 3:5; Heb. 12:23]."
Yes, and I am asking you also, [my] faithful partner [Note: This person is unknown, but may have been one of Paul's preacher companions], help those women, for they have worked hard with me in [spreading] the Gospel, along with Clement also, and the rest of my fellow-workers, whose names are in the book of life. [See Rev. 3:5; Heb. 12:23].
and to the church of the firstborn ones [i.e., those who have received an inheritance from their Father], whose names are recorded in heaven. [See Luke 10:20]. [You have come] to God, who is the Judge of all people, and to the spirits of righteous people who have become [morally] perfect [i.e., that great company of God's people who have gone on to their heavenly reward],
The person who has victory [in the Christian life] will be dressed like that, in white clothing, and I will not blot out his name from the book of life. And I will confess his name in front of my Father and His angels.
And everyone who lives on earth will worship the beast, [even those] people whose names had not been recorded in the book of life belonging to the Lamb, who was killed [in prospect] from the creation of the world. [Note: This sentence could also read "...not been recorded from the creation of the world in the book of life belonging to the Lamb who was killed"].
And I saw that the woman was drunk on the blood of God's holy people and on the blood of those [who were killed] witnessing about Jesus. And when I saw her I was greatly amazed.
And I saw dead people, the most important and the least significant ones, standing in front of the throne, and books were opened. Then another book was opened, which is the book of life [Note: This refers to a record of those to whom God has granted never ending life]. And these dead people [i.e., who have now been resurrected] were judged according to their deeds, based on what was recorded in the books.
And if any person's [name] was not found recorded in the book of life, he was thrown into the lake of fire.
And there will never be anything [morally] unclean allowed to enter it, nor any person who practices disgusting behavior [i.e., probably such sins as sexual perversion], or [any person] who is a liar. But the only ones [allowed there] are those [whose names are] recorded in the Lamb's book of life.