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.

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.

Hebrews 10:26

For [if] we keep on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,

Numbers 15:30-31

But the one {who acts presumptuously} from among the native or alien blasphemes against Yahweh, and that person must be cut off from the midst of the people.

Numbers 35:20-21

If he shoves him in hatred, or he throws something at him with intention, and he dies,

Deuteronomy 1:43

So I spoke to you, but you did not listen; you rebelled against the {command of Yahweh}; you behaved presumptuously, and you went up into the hill country.

Deuteronomy 17:12-13

And the man who treats with contempt [so as] not to listen to the priest [who] [is] standing to minister on behalf of Yahweh your God or to the judge, that man shall die; so you shall purge the evil from Israel.

Deuteronomy 18:22

[Whenever] what the prophet spoke in the name of Yahweh, the thing does not take place and [does] not come [about], that [is] the thing that Yahweh has not spoken to him. Presumptuously the prophet spoke it; you shall not fear that prophet."

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,

Deuteronomy 27:24

'Cursed be the one who strikes down his neighbor in secret.' And all the people shall say, 'Amen.'

2 Samuel 3:27

When Abner returned to Hebron, Joab took him aside to the middle of the gate to speak with him in private. Then he struck him in the stomach there and he died, {for he had shed the blood of Asahel his brother}.

2 Samuel 20:9-10

Then Joab said to Amasa, "Is it peace, O you my brother?" Then the right hand of Joab took hold of the beard of Amasa [as if] to kiss him.

1 Kings 1:50-51

Adonijah was afraid because of Solomon, and he got up and went and grasped the horns of the altar.

2 Kings 11:15

Then Jehoiada the priest commanded the commanders of the hundreds, the appointed of the army, and he said to them, "Bring her out to the house of the ranks! The one coming after her [should] kill her with the sword," for the priest had said, "Let her not be killed in the temple of Yahweh."

Psalm 19:13

Also, keep back your servant from arrogant [sins]; let them not rule over me. Then I shall be blameless, and I shall be innocent of great transgression.

2 Peter 2:10

and especially those who go after the flesh in defiling lust and who despise authority. Bold [and] arrogant, they do not tremble in awe [as they] blaspheme majestic beings,

Treasury of Scripture Knowledge

Summary

But if a man come presumptuously upon his neighbour, to slay him with guile; thou shalt take him from mine altar, that he may die.

Bible References

Presumptuously

Numbers 15:30
But the one {who acts presumptuously} from among the native or alien blasphemes against Yahweh, and that person must be cut off from the midst of the people.
Deuteronomy 1:43
So I spoke to you, but you did not listen; you rebelled against the {command of Yahweh}; you behaved presumptuously, and you went up into the hill country.
Deuteronomy 17:12
And the man who treats with contempt [so as] not to listen to the priest [who] [is] standing to minister on behalf of Yahweh your God or to the judge, that man shall die; so you shall purge the evil from Israel.
Deuteronomy 18:22
[Whenever] what the prophet spoke in the name of Yahweh, the thing does not take place and [does] not come [about], that [is] the thing that Yahweh has not spoken to him. Presumptuously the prophet spoke it; you shall not fear that prophet."
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,
1 Kings 2:29
It was told to King Solomon that Joab had fled to the tent of Yahweh and was beside the altar. So Solomon sent [word] to Benaiah son of Jehoiada, saying, "Go and fall upon him."
Psalm 19:13
Also, keep back your servant from arrogant [sins]; let them not rule over me. Then I shall be blameless, and I shall be innocent of great transgression.
Hebrews 10:26
For [if] we keep on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,
2 Peter 2:10
and especially those who go after the flesh in defiling lust and who despise authority. Bold [and] arrogant, they do not tremble in awe [as they] blaspheme majestic beings,

Slay

Numbers 35:20
If he shoves him in hatred, or he throws something at him with intention, and he dies,
Deuteronomy 27:24
'Cursed be the one who strikes down his neighbor in secret.' And all the people shall say, 'Amen.'
2 Samuel 3:27
When Abner returned to Hebron, Joab took him aside to the middle of the gate to speak with him in private. Then he struck him in the stomach there and he died, {for he had shed the blood of Asahel his brother}.
2 Samuel 20:9
Then Joab said to Amasa, "Is it peace, O you my brother?" Then the right hand of Joab took hold of the beard of Amasa [as if] to kiss him.

Take him

1 Kings 1:50
Adonijah was afraid because of Solomon, and he got up and went and grasped the horns of the altar.
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.
2 Kings 11:15
Then Jehoiada the priest commanded the commanders of the hundreds, the appointed of the army, and he said to them, "Bring her out to the house of the ranks! The one coming after her [should] kill her with the sword," for the priest had said, "Let her not be killed in the temple of Yahweh."

General references

Exodus 20:13
"You shall not murder.
Deuteronomy 27:24
'Cursed be the one who strikes down his neighbor in secret.' And all the people shall say, 'Amen.'
Proverbs 28:17
A person who is burdened with [the] blood of {another}, until death he will flee; do not take hold of him.