Revelation 13:16

and he obliges all men, low and high, rich and poor, freemen and slaves alike, to have a mark put upon their right hand or their forehead,

Revelation 19:18

to devour the flesh of kings, the flesh of generals, the flesh of the strong, the flesh of horses and their riders, the flesh of all men, free and slaves, low and high alike."

Revelation 7:3

"Do no harm to earth or sea or trees, until we seal the servants of our God upon their foreheads."

Revelation 19:5

And a voice came from the throne, "Extol our God, all ye his servants, ye who reverence him, low and high!"

Revelation 20:4

And I saw thrones with people sitting on them, who were allowed to judge ??saw the souls of those who had been beheaded for the testimony of Jesus and God's word, those who would not worship the Beast or his statue, and who would not receive his mark on their forehead or hand; they came to life and reigned along with the Christ for a thousand years.

Revelation 11:18

the nations were enraged, but thine anger has come; the time has come for the dead to be judged, the time for rewarding thy servants the prophets, and the saints who reverence thy name, both low and high, the time for destroying the destroyers of the earth."

Revelation 19:20

But the Beast was seized, together with the false Prophet who had performed in his presence the miracles by means of which he seduced those who received the mark of the Beast and worshipped his statue; both of them were flung alive into the lake of fire that blazes with brimstone,

Acts 26:22

To this day I have had the help of God in standing, as I now do, to testify alike to low and high, never uttering a single syllable beyond what the prophets and Moses predicted was to take place.

1 Corinthians 12:13

For by one Spirit we have all been baptized into one Body, Jews or Greeks, slaves or freemen; we have all been imbued with one Spirit.

Galatians 3:28

There is no room for Jew or Greek, there is no room for slave or freeman, there is no room for male and female; you are all one in Christ Jesus.

Galatians 6:17

Let no one interfere with me after this, for I bear branded on my body the owner's stamp of Jesus.

Ephesians 6:8

Be sure that everyone, slave or free, will be paid back by the Lord and Master for the good he has done.

Colossians 3:11

In it there is no room for Greek and Jew, circumcised and uncircumcised, barbarian, Scythian, slave, or free man; Christ is everything and everywhere.

2 Timothy 3:8

For these guides of theirs are hostile to the Truth, just as Jannes and Jambres were hostile to Moses; they are depraved in mind and useless for all purposes of faith.

Revelation 6:15

Then the kings of the earth, the magnates, the generals, the rich, the strong, slaves and freemen everyone of them, hid in caves and among the rocks of the mountains,

Revelation 14:9-11

They were followed by another, a third angel, crying aloud, "Whoever worships the Beast and his statue, and lets his forehead or hand be marked,

Revelation 15:2

And I saw what was like a sea of glass mixed with fire, and, standing beside the sea of glass, those who came off conquerors from the Beast and his statue and the cipher of his name; they had harps of God

Revelation 20:12

And I saw the dead, high and low, standing before the throne, and books were opened ??also another book, the book of Life, was opened ??and the dead were judged by what was written in these books, by what they had done.

Treasury of Scripture Knowledge

Summary

And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads:

Bible References

Both

Revelation 11:18
the nations were enraged, but thine anger has come; the time has come for the dead to be judged, the time for rewarding thy servants the prophets, and the saints who reverence thy name, both low and high, the time for destroying the destroyers of the earth."
Revelation 19:5
And a voice came from the throne, "Extol our God, all ye his servants, ye who reverence him, low and high!"
Revelation 20:12
And I saw the dead, high and low, standing before the throne, and books were opened ??also another book, the book of Life, was opened ??and the dead were judged by what was written in these books, by what they had done.
Acts 26:22
To this day I have had the help of God in standing, as I now do, to testify alike to low and high, never uttering a single syllable beyond what the prophets and Moses predicted was to take place.

Free

Revelation 6:15
Then the kings of the earth, the magnates, the generals, the rich, the strong, slaves and freemen everyone of them, hid in caves and among the rocks of the mountains,
Revelation 19:18
to devour the flesh of kings, the flesh of generals, the flesh of the strong, the flesh of horses and their riders, the flesh of all men, free and slaves, low and high alike."
1 Corinthians 12:13
For by one Spirit we have all been baptized into one Body, Jews or Greeks, slaves or freemen; we have all been imbued with one Spirit.
Galatians 3:28
There is no room for Jew or Greek, there is no room for slave or freeman, there is no room for male and female; you are all one in Christ Jesus.
Ephesians 6:8
Be sure that everyone, slave or free, will be paid back by the Lord and Master for the good he has done.
Colossians 3:11
In it there is no room for Greek and Jew, circumcised and uncircumcised, barbarian, Scythian, slave, or free man; Christ is everything and everywhere.

A mark

Revelation 14:9
They were followed by another, a third angel, crying aloud, "Whoever worships the Beast and his statue, and lets his forehead or hand be marked,
Revelation 15:2
And I saw what was like a sea of glass mixed with fire, and, standing beside the sea of glass, those who came off conquerors from the Beast and his statue and the cipher of his name; they had harps of God
Revelation 19:20
But the Beast was seized, together with the false Prophet who had performed in his presence the miracles by means of which he seduced those who received the mark of the Beast and worshipped his statue; both of them were flung alive into the lake of fire that blazes with brimstone,
Revelation 20:4
And I saw thrones with people sitting on them, who were allowed to judge ??saw the souls of those who had been beheaded for the testimony of Jesus and God's word, those who would not worship the Beast or his statue, and who would not receive his mark on their forehead or hand; they came to life and reigned along with the Christ for a thousand years.

Or

Revelation 7:3
"Do no harm to earth or sea or trees, until we seal the servants of our God upon their foreheads."
2 Timothy 3:8
For these guides of theirs are hostile to the Truth, just as Jannes and Jambres were hostile to Moses; they are depraved in mind and useless for all purposes of faith.