Actually, the WTS discusses this from another angle which I have discussed several times on JWD.
1) Ezekiel 9:4-6
Only people with the mark with survive Armageddon
2) The mark is baptism as a JW
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w891/15p.20par.20HowBaptismCanSaveUs***In ancient times, slaves were often marked on the forehead. By the preaching work today, the antitypical ?man clothed in linen??the remnant of Jesus? anointed followers?is ?marking? those who will survive the end of this system. In this work the anointed are assisted by their associates, the "other sheep." (Ezekiel 9:1-7; John 10:16) And what is the "mark"? It is the evidence that we are dedicated to Jehovah and are Jesus? baptized disciples who have a Christlike personality.
Especially now is it vital that we have the "mark" and retain it, for we are deep into "the time of the end." (Daniel 12:4) To be saved we must ?endure to the end? of our present life or of this system. (Matthew 24:13) Only if we thus remain faithful as witnesses of Jehovah will baptism save us.
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w874/15pp.11-12GainingPeaceWithGodThroughDedicationandBaptism***Getting
the"Mark"6
To be spared from God?s wrath, those who ?sighed and groaned? had to be marked on their forehead. (Ezekiel 9:4) In ancient times slaves were often marked on the forehead to be clearly identified. Distinctive marks on the forehead and elsewhere might also show that a person worshiped a certain deity. (Compare Isaiah 44:5.) So, in our day, what is the distinctive, lifesaving mark that clearly identifies its bearers as true worshipers and slaves of Jehovah?
7
The symbolic mark is the evidence, as if displayed on your uncovered forehead, (1) that you are a dedicated, baptized disciple of Jesus Christ and (2) that you have put on the Christlike new personality. (Ephesians 4:20-24) Since those thus ?marked? must first make a dedication, we need to know what this involves. Jesus explains: "If anyone wants to come after me, let him disown himself and pick up his torture stake and follow me continually."?Mark 8:34.It seems clear from the above (and many other references in the WT publications), that according to the WTS, a person must be a baptized JW to survive Armageddon.
Blondie