Then she said, In the old days, there was a saying, Let them put the question in Abel and in Dan, saying, Has what was ordered by men of good faith in Israel ever come to an end?

Put the question now to the past generations, and give attention to what has been searched out by their fathers:

Thou

And for your blood, which is your life, will I take payment; from every beast I will take it, and from every man will I take payment for the blood of his brother-man.

Do not put anyone to death without cause.

And

He who gives a man a death-blow is himself to be put to death.

In these towns you may be safe from him who has the right of punishment; so that death may not overtake the taker of life till he has been judged by the meeting of the people.

Will say, This death is not the work of our hands and our eyes have not seen it.

Now you have knowledge of what Joab, the son of Zeruiah, did to me, and to the two captains of the army of Israel, Abner, the son of Ner, and Amasa, the son of Jether, whom he put to death, taking payment for the blood of war in time of peace, and making the band of my clothing and the shoes on my feet red with the blood of one put to death without cause.

General references

Do not put anyone to death without cause.