And the Lord said to him, “Therefore, whoever kills Cain, a sevenfold vengeance [that is, punishment seven times worse] shall be taken on him [by Me].” And the Lord set a [protective] mark (sign) on Cain, so that no one who found (met) him would kill him.

“If Cain is avenged sevenfold [as the Lord said he would be],
Then Lamech [will be avenged] seventy-sevenfold.”

And return into the lap of our neighbors sevenfold
The taunts with which they have taunted You, O Lord.

The light of the full moon will be like the light of the sun, and the light of the sun will be seven times brighter, like the light of seven days [concentrated in one], in the day the Lord binds up the fracture of His people and heals the wound He has inflicted [because of their sins].

For behold, the stone which I have set before Joshua; on that one stone are seven eyes (symbolizing infinite intelligence, omniscience). Behold, I will engrave an inscription on it,’ declares the Lord of hosts, ‘and I will remove the wickedness and guilt of this land in a single day.