Genesis 4:15

And the LORD said unto him, Therefore whoever slays Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.

Ezekiel 9:4

and the LORD said unto him, Go through the midst of the city, through the midst of Jerusalem and set a mark upon the foreheads of the men that sigh and that cry out because of all the abominations that are done in the midst of her.

Ezekiel 9:6

Slay the old, the young men, and the virgins, the children and the women, but do not come near anyone upon whom is the mark; and ye must begin from my sanctuary. Then they began with the men, the elders, which were in front of the temple.

Genesis 4:24

if Cain shall be avenged sevenfold, truly Lamech seventy times seven.

Psalm 79:12

and render unto our neighbours sevenfold into their bosom their reproach, with which they have reproached thee, O Lord.

Revelation 14:9

And the third angel followed them, saying with a loud voice, If anyone worships the beast and its image and receives the mark in his forehead or in his hand,

Revelation 14:11

and the smoke of their torment ascends up for ever and ever; and those that worship the beast and its image and whosoever receives the mark of its name, have no rest day or night.

Leviticus 26:18

And if ye will not yet for all this hearken unto me, then I will punish you seven times more for your sins.

Leviticus 26:21

And if ye walk contrary unto me and will not hearken unto me; I will bring seven times more plagues upon you according to your sins.

Leviticus 26:24

then will I also walk contrary unto you and will punish you yet seven times for your sins.

Leviticus 26:28

then I will walk contrary unto you also in fury, and I, even I, will chastise you seven times for your sins.

1 Kings 16:7

And likewise by the hand of the prophet Jehu, the son of Hanani, had come the word of the LORD upon Baasha and upon his house and upon all the evil that he did in the sight of the LORD, provoking him to anger with the work of his hands, so that he would be made like the house of Jeroboam and because of having smitten him.

Psalm 59:11

Slay them not lest my people forget; scatter them by thy power and bring them down, O Lord our shield.

Proverbs 6:31

and once he is taken, he shall restore sevenfold; he shall give all the substance of his house.

Hosea 1:4

And the LORD said unto him, Call his name Jezreel; for yet a little while, and I will visit the blood of Jezreel upon the house of Jehu and will cause the kingdom of the house of Israel to cease.

Matthew 26:52

Then Jesus said unto him, Put up again thy sword into its place, for all those that 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.

Set a mark, etc

Bible References

Therefore

1 Kings 16:7
And likewise by the hand of the prophet Jehu, the son of Hanani, had come the word of the LORD upon Baasha and upon his house and upon all the evil that he did in the sight of the LORD, provoking him to anger with the work of his hands, so that he would be made like the house of Jeroboam and because of having smitten him.
Psalm 59:11
Slay them not lest my people forget; scatter them by thy power and bring them down, O Lord our shield.
Hosea 1:4
And the LORD said unto him, Call his name Jezreel; for yet a little while, and I will visit the blood of Jezreel upon the house of Jehu and will cause the kingdom of the house of Israel to cease.
Matthew 26:52
Then Jesus said unto him, Put up again thy sword into its place, for all those that take the sword shall perish by the sword.

Sevenfold

Genesis 4:24
if Cain shall be avenged sevenfold, truly Lamech seventy times seven.
Leviticus 26:18
And if ye will not yet for all this hearken unto me, then I will punish you seven times more for your sins.
Psalm 79:12
and render unto our neighbours sevenfold into their bosom their reproach, with which they have reproached thee, O Lord.
Proverbs 6:31
and once he is taken, he shall restore sevenfold; he shall give all the substance of his house.

Set a mark, etc

Ezekiel 9:4
and the LORD said unto him, Go through the midst of the city, through the midst of Jerusalem and set a mark upon the foreheads of the men that sigh and that cry out because of all the abominations that are done in the midst of her.
Revelation 14:9
And the third angel followed them, saying with a loud voice, If anyone worships the beast and its image and receives the mark in his forehead or in his hand,