Revelation 14:9

And another, a third angel, followed them, saying with a loud voice, if any one worships the beast and his image, and receives the mark on his forehead or on his hand,

Revelation 14:11

And the smoke of their torment rises up forever and ever, and they have no rest day nor night who worship the beast and his image, and whoever receives the mark of his name.

Matthew 26:52

Then Jesus said to him, Put up your sword in its place; for all who take the sword shall perish 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 up your sword in its place; for all who take the sword shall perish by the sword.

Set a mark, etc

Revelation 14:9
And another, a third angel, followed them, saying with a loud voice, if any one worships the beast and his image, and receives the mark on his forehead or on his hand,