Numbers 35:31

Also, you will not take a ransom payment for the life of a killer who [is] guilty of death; indeed, he must surely be put to death.

Genesis 9:5-6

And {your lifeblood} I will require; from {every animal} I will require it. And from the hand of humankind, from the hand of [each] man to his brother I will require the life of humankind.

Exodus 21:14

But if a man schemes against his neighbor to kill him by treachery, you will take him from my altar to die.

Deuteronomy 19:11-13

But if someone hates his neighbor and lies in wait for him and rises up against him {and murders him}, and [the murderer] flees to one of these cities,

2 Samuel 12:13

Then David said to Nathan, "I have sinned against Yahweh!" Nathan said to David, "Yahweh has also forgiven your sin; you shall not die.

1 Kings 2:28-34

When the message came to Joab (now Joab {had supported} Adonijah but {had not supported} Absalom), he fled to the tent of Yahweh and grasped the horns of the altar.

Psalm 51:14

Deliver me from the guilt of bloodshed, O God, the God of my salvation; [then] my tongue will sing aloud [of] your righteousness.

Treasury of Scripture Knowledge

Summary

Moreover ye shall take no satisfaction for the life of a murderer, which is guilty of death: but he shall be surely put to death.

General references

Bible References

Moreover

Genesis 9:5
And {your lifeblood} I will require; from {every animal} I will require it. And from the hand of humankind, from the hand of [each] man to his brother I will require the life of humankind.
Exodus 21:14
But if a man schemes against his neighbor to kill him by treachery, you will take him from my altar to die.
Deuteronomy 19:11
But if someone hates his neighbor and lies in wait for him and rises up against him {and murders him}, and [the murderer] flees to one of these cities,
2 Samuel 12:13
Then David said to Nathan, "I have sinned against Yahweh!" Nathan said to David, "Yahweh has also forgiven your sin; you shall not die.
1 Kings 2:28
When the message came to Joab (now Joab {had supported} Adonijah but {had not supported} Absalom), he fled to the tent of Yahweh and grasped the horns of the altar.
Psalm 51:14
Deliver me from the guilt of bloodshed, O God, the God of my salvation; [then] my tongue will sing aloud [of] your righteousness.

General references

Exodus 21:12
" '{Whoever strikes someone} and he dies will surely be put to death.
Deuteronomy 27:24
'Cursed be the one who strikes down his neighbor in secret.' And all the people shall say, 'Amen.'