Gen 4:15 Then the Lord said to him, “Not so! If anyone kills Cain, vengeance shall be taken on him sevenfold.” And the Lord put a mark on Cain, lest any who found him should attack him.
Gen 4:24 If Cain’s revenge is sevenfold,
then Lamech’s is seventy-sevenfold.”
Psa 12:6 The words of the Lord are pure words,
like silver refined in a furnace on the ground,
purified seven times.
Psa 79:12 Return sevenfold into the lap of our neighbors
the taunts with which they have taunted you, O Lord!
Pro 6:31 but if he is caught, he will pay sevenfold;
he will give all the goods of his house.
Isa 30:26 Moreover, the light of the moon will be as the light of the sun, and the light of the sun will be sevenfold, as the light of seven days, in the day when the Lord binds up the brokenness of his people, and heals the wounds inflicted by his blow.

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