Numbers 35:19

The avenger of blood shall himself put the murderer to death. When he meets him, he shall put him to death.

Numbers 35:21

or in enmity smote him with his hand, so that he died, he who smote him shall surely be put to death. He is a murderer. The avenger of blood shall put the murderer to death, when he meets 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 did not hate him in time past.

Deuteronomy 19:12

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

Joshua 20:3

that the manslayer who kills any soul unwittingly [and] unawares may flee there. And they shall be to you for a refuge from the avenger of blood.

Joshua 20:5

And if the avenger of blood pursues after him, then they shall not deliver up the manslayer into his hand, because he smote his neighbor unawares, and did not hate him formerly.

Numbers 35:12

And the cities shall be to you for refuge from the avenger, that the manslayer not die until he stands 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 outside the border of his city of refuge, and the avenger of blood kills 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 to you for refuge from the avenger, that the manslayer not die until he stands 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 did not hate him in time past.
Joshua 20:3
that the manslayer who kills any soul unwittingly [and] unawares may flee there. And they shall be to you for a refuge from the avenger of blood.