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 14:11
the smoke of their torture rises for ever and ever, and they get no rest from it, day and night, these worshippers of the Beast and his statue, and all who are marked with his name."
Matthew 26:52
Then Jesus said to him, "Put your sword back into its place; all who draw the sword shall die by the sword.
Treasury of Scripture Knowledge
Summary
And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.
Therefore
Set a mark, etc
Bible References
Therefore
Matthew 26:52
Then Jesus said to him, "Put your sword back into its place; all who draw the sword shall die by the sword.
Set a mark, etc
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,