^13:8 All inhabitants of the earth will worship the beast—all whose names have not been written in the Lamb’s book of life, the Lamb who was slain from the creation of the world.^[b]

All inhabitants of the earth will worship the beast— (sea beast or AntiChrist),

This is the fourth purpose (verse 5) for the AntiChrist. The delusion is complete (or is it?). The "beast" is a creature and so convincing that what Paul writes about in Romans 1:24-25 takes place. He becomes the object of worship (2 Thessalonians 2:1-12) above all other gods. But not all were deluded, but only

all whose names have not been written in the Lamb’s book of life, the Lamb who was slain from the creation of the world.^[b]

This verse really is about CHOICES. God's perfect plan included the Savior and believer's redemption even before the world was created (1 Peter 1:13-21).

Thus everyone has been "saved" or "written" in the Lamb's Book of Life because Christ died for all. Then by a person's own CHOICE, their own name is removed from the Book (Revelation 3:5).

This is not a new concept: Moses understood it (Exodus 32:30-32-35) and Daniel understood it (Daniel 12:1-3). The question becomes "What is your CHOICE?" Don't wait until the tribulation to choose NOT to worship the AntiChrist!

^[b] Or written from the creation of the world in the book of life belonging to the Lamb who was slain