Gen 4:15, 24, Num 35:19, Rom 13:4 | ESV | STEP | 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.

Genesis 4:15

15 Then the Lord said to him, “Not so! If anyone kills Cain, vengeance shall be taken on him ^asevenfold.” And the Lord ^bput a mark on Cain, lest any who found him should attack him.

Genesis 4:24

24 ^cIf Cain’s revenge is sevenfold,
then Lamech’s is seventy-sevenfold.”

Numbers 35:19

19 ^dThe avenger of blood shall himself put the murderer to death; when he meets him, he shall put him to death.

Romans 13:4

4 for ^ehe is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, ^fan avenger who carries out God’s wrath on the wrongdoer.