2 Kings 14:5

It happened that when the kingdom was firmly in his hand, he killed his servants who had killed his father the king.

Genesis 9:6

"[As for] the one shedding the blood of humankind, by humankind his blood shall be shed, for God made humankind in his own image.

Exodus 21:12-14

" '{Whoever strikes someone} and he dies will surely be put to death.

Numbers 35:33

So you will not pollute the land in which you are; because blood pollutes the land, and no atonement can be made for the land for the blood that is poured out on it except with the blood of the one who poured it out.

2 Kings 12:20-21

Then his servants arose and conspired and killed Joash [in] the house of the Millo as he was going down toward Silla.

2 Chronicles 25:3-4

And it happened [that] as his reign was strengthened, he killed his servants who had killed his father the king.

Treasury of Scripture Knowledge

Summary

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.

General references

Bible References

That he slew

Genesis 9:6
"[As for] the one shedding the blood of humankind, by humankind his blood shall be shed, for God made humankind in his own image.
Exodus 21:12
" '{Whoever strikes someone} and he dies will surely be put to death.
Numbers 35:33
So you will not pollute the land in which you are; because blood pollutes the land, and no atonement can be made for the land for the blood that is poured out on it except with the blood of the one who poured it out.

His servants

2 Kings 12:20
Then his servants arose and conspired and killed Joash [in] the house of the Millo as he was going down toward Silla.
2 Chronicles 25:3
And it happened [that] as his reign was strengthened, he killed his servants who had killed his father the king.

General references

Deuteronomy 24:16
"Fathers shall not be put to death because of [their] children, and children shall not be put to death because of [their] fathers; each one shall be put to death for his [own] sin.