2 Kings 14:5
"And it came to pass, as soon as the kingdom was confirmed in his hand, that he slew his servants which had slain the king his father."
Cross References (ranked by relevance)
Numbers 35:33
So ye shall not pollute the land wherein ye are: for blood it defileth the land: and the land cannot be cleansed of the blood that is shed therein, but by the blood of him that shed it.
Genesis 9:6
Whoso sheddeth man’s blood, by man shall his blood be shed: for in the image of God made he man.