When John described those that didn't worship the Beast in Revelation 20:4, is he talking about all people that were not "of the world"?
Revelation 20:4
Then I saw thrones, and seated on them were those to whom the authority to judge was committed. Also I saw the souls of those who had been beheaded for the testimony of Jesus and for the word of God, and those who had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years.
While we're at it, is the "mark" a spiritual mark that we are unable to see? In other words, is it possible that those who are "of the world" or who "worship the Beast" are spiritually marked?
John 15:19 esv
If you were of the world, the world would love you as its own; but because you are not of the world, but I chose you out of the world, therefore the world hates you.
Daniel's (Little Horn), Paul's (Man Of Sin), And John's (The Beast) A Literal Human Man,, That Will Be Present On This Earth At The Second Coming Of Jesus Christ
The figure mentioned above will be a "Future" literal human man, and he will be present on earth in a living human body to witness the "Future" second coming and final judgment as scripture clearly teaches below
Daniel's (Little Horn) Present On Earth At The Second Coming
Daniel 7:8-11KJV
8 I considered the horns, and, behold, there came up among them another
little horn, before whom there were three of the first horns plucked up by the roots: and, behold, in this horn were eyes like the eyes of man, and a mouth speaking great things.
9 I beheld till the thrones were cast down, and the Ancient of days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and his wheels as burning fire.
10
A fiery stream issued and came forth from before him: thousand thousands ministered unto him, and ten thousand times ten thousand stood before him:
the judgment was set, and the books were opened.
11 I beheld then because of the voice of the great words which
the horn spake: I beheld even till
the beast was slain, and his body destroyed, and given to the burning flame.
Paul's (Man Of Sin) Present On Earth At The Second Coming
2 Thessalonians 2:3-8KJV
3 Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and
that man of sin be revealed, the son of perdition;
4 Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.
5 Remember ye not, that, when I was yet with you, I told you these things?
6 And now ye know what withholdeth
that he might be revealed in his time.
7 For the mystery of iniquity doth already work: only he who now letteth will let,
until he be taken out of the way.
8 And then shall that Wicked be revealed,
whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming:
John's (The Beast) Present On Earth At The Second Coming
Revelation 19:19-20KJV
19 And I saw
the beast, and the kings of the earth, and their armies, gathered together to make war against him that sat on the horse, and against his army.
20 And
the beast was taken, and
with him the false prophet that wrought miracles
before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image.
These both were cast alive into a lake of fire burning with brimstone.