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, since he hated him not previously.

Numbers 35:12

And ye shall have these cities for refuge from the avenger; that the manslayer die not, until he have stood before the assembly in judgment.

Deuteronomy 21:22

And if a man have committed a sin worthy of death, and he be put to death, and thou have hanged him on a tree,

Joshua 20:5

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

2 Samuel 14:7

And behold, the whole family is risen against thy bondmaid, and they say, Deliver him that smote his brother, that we may put him to death, for the life of his brother whom he killed; and we will destroy the heir also: so they will quench my coal which is left, and will not leave to my husband a name or remnant on the earth.

Jeremiah 26:15-16

only know for certain that if ye put me to death, ye shall surely bring innocent blood upon yourselves, and upon this city, and upon the inhabitants thereof; for of a truth Jehovah hath sent me unto you to speak all these words in your ears.

Treasury of Scripture Knowledge

Summary

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

In time past

General references

Bible References

The avenger

Numbers 35:12
And ye shall have these cities for refuge from the avenger; that the manslayer die not, until he have stood before the assembly in judgment.
Joshua 20:5
And if the avenger of blood pursue after him, they shall not deliver the slayer up into his hand; for he smote his neighbour unwittingly, and hated him not previously.
2 Samuel 14:7
And behold, the whole family is risen against thy bondmaid, and they say, Deliver him that smote his brother, that we may put him to death, for the life of his brother whom he killed; and we will destroy the heir also: so they will quench my coal which is left, and will not leave to my husband a name or remnant on the earth.

Not worthy

Deuteronomy 21:22
And if a man have committed a sin worthy of death, and he be put to death, and thou have hanged him on a tree,
Jeremiah 26:15
only know for certain that if ye put me to death, ye shall surely bring innocent blood upon yourselves, and upon this city, and upon the inhabitants thereof; for of a truth Jehovah hath sent me unto you to speak all these words in your ears.

In time past

Deuteronomy 19:4
And this is the case of the slayer who shall flee thither that he may live: he that smiteth his neighbour unwittingly, whom he hated not previously;

General references

Numbers 35:19
the avenger of blood, he shall put the murderer to death; when he meeteth him, he shall put him to death.