All
who dwell on earth will worship [the beast], everyone whose name has
not been written before the foundation of the world in the book of life
of the Lamb who was slain. (Revelation 13:8)
Salvation is secured for all who are written in the book of life.
The
reason that being written in the book of life secures our salvation is
that the book is called “the book of life of the Lamb who was slain.”
The names in this book are not saved on the basis of their deeds. They
are saved on the basis of Christ’s being slain.
But
John says in Revelation 20:12, “I saw the dead, great and small,
standing before the throne, and books were opened. Then another book was
opened, which is the book of life. And the dead were judged by what was
written in the books, according to what they had done.” So, how then
does the record of our lives contained in “the books” have a part in our
judgment, if we are saved on the basis of Christ being slain?
The
answer is that the books, which record our deeds, contain enough
evidence of our belonging to Christ that they function as a public
confirmation of our faith and our union with Christ.
Consider
Revelation 21:27: “Nothing unclean will ever enter [the New Jerusalem],
nor anyone who does what is detestable or false, but only those who are
written in the Lamb’s book of life.” Here the result of being written
in the “book of life” is not only not perishing, but also not practicing
detestable, sinful behaviors.
For
example, consider the thief on the cross. Jesus said that he would
enter paradise (Luke 23:43). But what will judgment be like for him when
the books are opened? More than 99.9% of his life will be sin.
His salvation will be secured by the blood of Christ. His name will be in the book of life of the Lamb that was slain.
Then
God will open the books. First, he will use the lifelong record of sin
to glorify his Son’s supreme sacrifice. And, second, God will read that
last page, where the thief’s dramatic transformation on the cross is
recorded. This work of God in his life, recorded in the books, about
that last day will be the public confirmation of the thief’s faith and
union with Christ. And Christ will be the basis of his salvation, not
his works.
Therefore,
when I say that what is written in the books is a public confirmation
of our faith and of union with Christ, I do not mean that the record
will contain more good works than bad works.
I
mean that there will be recorded there the kind of life in Christ that
shows the reality of faith — the reality of regeneration and union with
Christ. That is how we enter each day as a Christian: confident that our
condemnation is past (Romans 8:1), and that our name is in the book of
life, and that the one who began a good work in us will bring it to
completion at the day of Christ.
John Piper