'Avenger of Blood' in the Bible

The avenger of blood shall himself put the murderer to death: when he meeteth him, he shall put him to death.

or in enmity smote him with his hand, so that he died; he that smote him shall surely be put to death; he is a murderer: the avenger of blood shall put the murderer to death, when he meeteth him.

then the congregation shall judge between the smiter and the avenger of blood according to these ordinances;

and the congregation shall deliver the manslayer out of the hand of the avenger of blood, and the congregation shall restore him to his city of refuge, whither he was fled: and he shall dwell therein until the death of the high priest, who was anointed with the holy oil.

and the avenger of blood find him without the border of his city of refuge, and the avenger of blood slay the manslayer; he shall not be guilty of blood,

lest the avenger of blood pursue the manslayer, while his heart is hot, and overtake him, because the way is long, and smite him mortally; whereas he was not worthy of death, inasmuch as he hated him not in time past.

Then the elders of his city shall send and fetch him thence, and deliver him into the hand of the avenger of blood, that he may die.

That the slayer that killeth any person unawares and unwittingly may flee thither: and they shall be your refuge from the avenger of blood.

And if the avenger of blood pursue after him, then they shall not deliver the slayer up into his hand; because he smote his neighbour unwittingly, and hated him not beforetime.

These were the cities appointed for all the children of Israel, and for the stranger that sojourneth among them, that whosoever killeth any person at unawares might flee thither, and not die by the hand of the avenger of blood, until he stood before the congregation.

Then said she, I pray thee, let the king remember Jehovah thy God, that the avenger of blood destroy not any more, lest they destroy my son. And he said, As Jehovah liveth, there shall not one hair of thy son fall to the earth.

As an avenger of blood, he remembers them; he has not forgotten the cry of the afflicted.