Numbers 35:19

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

Numbers 35:21

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.

Deuteronomy 19:6

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.

Deuteronomy 19:12

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.

Joshua 20:3

that the manslayer that killeth any person unwittingly and unawares may flee thither: and they shall be unto you for a refuge from the avenger of blood.

Joshua 20:5

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

Numbers 35:12

And the cities shall be unto you for refuge from the avenger, that the manslayer die not, until he stand before the congregation for judgment.

Numbers 35:24

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

Numbers 35:27

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,

Treasury of Scripture Knowledge

Summary

The revenger of blood himself shall slay the murderer: when he meeteth him, he shall slay him.

Bible References

General references

Numbers 35:12
And the cities shall be unto you for refuge from the avenger, that the manslayer die not, until he stand before the congregation for judgment.
Deuteronomy 19:6
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.
Joshua 20:3
that the manslayer that killeth any person unwittingly and unawares may flee thither: and they shall be unto you for a refuge from the avenger of blood.

American Standard Version Public Domain