Deuteronomy 19:13

Thy eye shall not pity him, but thou shall remove the guilt of innocent blood from Israel, that it may be well with thee.

1 Kings 2:31

And the king said to him, Do as he hath said, and fall upon him, and bury him; that thou mayest take away the innocent blood which Joab shed, from me, and from the house of my father.

Deuteronomy 7:2

And when the LORD thy God shall deliver them before thee, thou shalt smite them and utterly destroy them, thou shalt make no covenant with them, nor show mercy to them:

Deuteronomy 7:16

And thou shalt consume all the people which the LORD thy God shall deliver to thee; thy eye shall have no pity upon them: neither shalt thou serve their gods; for that will be a snare to thee.

Deuteronomy 21:9

So shalt thou remove the guilt of innocent blood from among you, when thou shalt do that which is right in the sight of the LORD.

Deuteronomy 25:12

Then thou shalt cut off her hand, thy eye shall not pity her.

Genesis 9:6

Whoever sheddeth man's blood, by man shall his blood be shed: for in the image of God made he man.

Leviticus 24:17

And he that killeth any man shall surely be put to death.

Leviticus 24:21

And he that killeth a beast, he shall restore it: and he that killeth a man, he shall be put to death.

Numbers 35:33-34

So ye shall not pollute the land in which ye are: for blood it defileth the land: and the land cannot be cleansed of the blood that is shed in it, but by the blood of him that shed it.

Deuteronomy 13:8

Thou shalt not consent to him, nor hearken to him; neither shall thy eye pity him, neither shalt thou spare, neither shalt thou conceal him:

2 Samuel 21:1

Then there was a famine in the days of David three years, year after year; and David inquired of the LORD. And the LORD answered, It is for Saul, and for his bloody house, because he slew the Gibeonites.

2 Samuel 21:14

And the bones of Saul and Jonathan his son they buried in the country of Benjamin in Zelah, in the sepulcher of Kish his father: and they performed all that the king commanded. And after that God was entreated for the land.

Ezekiel 16:5

No eye pitied thee, to do any of these to thee, to have compassion upon thee; but thou wast cast out in the open field, to the lothing of thy person, in the day that thou wast born.

Treasury of Scripture Knowledge

Summary

Thine eye shall not pity him, but thou shalt put away the guilt of innocent blood from Israel, that it may go well with thee.

Bible References

But thou

Deuteronomy 21:9
So shalt thou remove the guilt of innocent blood from among you, when thou shalt do that which is right in the sight of the LORD.
Genesis 9:6
Whoever sheddeth man's blood, by man shall his blood be shed: for in the image of God made he man.
Leviticus 24:17
And he that killeth any man shall surely be put to death.
Numbers 35:33
So ye shall not pollute the land in which ye are: for blood it defileth the land: and the land cannot be cleansed of the blood that is shed in it, but by the blood of him that shed it.
2 Samuel 21:1
Then there was a famine in the days of David three years, year after year; and David inquired of the LORD. And the LORD answered, It is for Saul, and for his bloody house, because he slew the Gibeonites.
1 Kings 2:31
And the king said to him, Do as he hath said, and fall upon him, and bury him; that thou mayest take away the innocent blood which Joab shed, from me, and from the house of my father.

General references

Exodus 20:13
Thou shalt not kill.
Exodus 21:12
He that smiteth a man, so that he dieth, shall be surely put to death.
Deuteronomy 19:10
That innocent blood may not be shed in thy land, which the LORD thy God giveth thee for an inheritance, and so blood be upon thee.
Deuteronomy 25:12
Then thou shalt cut off her hand, thy eye shall not pity her.